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扬州市江都区四校联谊
0
扬州市江都区四校联谊,2019届二模物理试卷2019年05月28日/UploadFiles/nopic.gif
一
、选择题(本题共 12 小题,每小题 2 分,共 24 分.每小题给出的四个选项中只有一
一
、选择题(本题共 12 小题,每小题 2 分,共 24 分.每小题给出的四个选项中只有一个选项正确)
1
.
下列数据中,你认为最符合实际的是 ( ▲ )
A
.手机待机时工作电流约 1A B.一杯水对水平桌面的压强大约 1000Pa
C
.人体感觉舒适的环境温度为 37℃ D.头发丝的直径约 60nm
2
.下列相关“热现象”,对其解释正确的是( ▲ )
A.在汽油机做功冲程中,汽油燃烧释放的热量全部转化变成机械能 B.电冰箱散热器摸起来烫手,这主要是电流
【内容简介】
一
、选择题(本题共 12 小题,每小题 2 分,共 24 分.每小题给出的四个选项中只有一个选项正确)
1
.
下列数据中,你认为最符合实际的是 ( ▲ )
A
.手机待机时工作电流约 1A B.一杯水对水平桌面的压强大约 1000Pa
C
.人体感觉舒适的环境温度为 37℃ D.头发丝的直径约 60nm
2
.下列相关“热现象”,对其解释正确的是( ▲ )
A.在汽油机做功冲程中,汽油燃烧释放的热量全部转化变成机械能 B.电冰箱散热器摸起来烫手,这主要是电流的热效应造成的
C.物质吸收热量,内能一定增加,温度不一定升高
D
.夏天,打开电冰箱看到的“白气”是冰箱内的水蒸气液化而形成的
3
.
如图所示的光学实验研究出的物理规律不能解释所对应的光学现象的是( ▲ )
A.手影 B.透镜成像 C.水中筷子变“弯” D.彩虹
4
.关于能源、材料和粒子,下列说法中正确的是( ▲ )
A.电饭锅用超导材料做加热器可以大大提高电能转化为内能的效率 B.原子核式结构模型是卢瑟福根据科学猜想建立起来的
C.破镜难以重圆,是因为分子间存在斥力
D.太阳能、风能、核能是可再生能源
5
.测量电流时,需要将电流表串联在电路中,通常,电流表的电阻比待测电路的电阻小得多, 因此对测量值的影响可以忽略不计.下列研究方法与此相同的是( ▲ )
A.在探究平面镜成像特点实验中,用两个相同的棋子探究像与物的大小关系
B.根据被压物体形变大小反映压力作用效果
C.在探究二力平衡条件的实验中,选用轻质卡片 D.在研究光的传播现象时,引入光线
6
.如图所示,粗糙的弧形轨道竖直固定于水平面,一小球由 A 点以速度 V 沿轨道滚下,经另一 侧等高点 B 后到达最高点 C.下列关于小球滚动过程的分析正确的是( ▲ )
A
.整个过程只有重力在对小球做功
B
.
小球在 A、B 两点具有的动能相同
C
.小球在 A、B、C 三点的速度大小关系是 VA>VB>VC
D
.
小球在 A 点具有的机械能等于它在 C 点具有的重力势能
7
.
以下说法错误的是 ( ▲ )
图甲 图乙 图丙 图丁
A
.(图甲)将测电笔笔尖与火线(220V)接触,手抵金属帽,氖管发光,若笔内电阻为一百万欧 姆,尽管其余电阻未知,也可以判断出流经人体的电流不会超过 2.2×10-4A.
B. 设人体电阻约为 104Ω,当人的两手分别接触一节干电池(1.5V)两极时,流经人体的电流约 为 1.5×10-4A,人体没有危险.
C
.(图乙)是固定在墙壁上的三孔插座,其中“①”孔应与地线相连;(图丙)为用电器的三脚 插头,若不小心将“①”脚折断丢失,用电器仍能工作.
D
.(图丁)在正常情况下,经“火线→电灯→零线”的电流处处相等,若某人不小心碰到火线裸 露处,会导致 I1< I2.当“漏电保护器”检测到“两线”电流不等时会自动切断线路.
一
、选择题(本题共 12 小题,每小题 2 分,共 24 分.每小题给出的四个选项中只有一个选项正确)
1
.
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<span style="letter-spacing:.1pt;">.</span>人<span style="letter-spacing:.1pt;">体</span>感<span style="letter-spacing:.1pt;">觉</span>舒<span style="letter-spacing:.1pt;">适</span>的<span style="letter-spacing:.1pt;">环</span>境<span style="letter-spacing:.1pt;">温</span>度为 <span style="letter-spacing:.05pt;">37</span>℃ <span style="letter-spacing:.05pt;">D</span><span style="letter-spacing:.1pt;">.</span>头<span style="letter-spacing:.1pt;">发</span>丝<span style="letter-spacing:.1pt;">的</span>直<span style="letter-spacing:.1pt;">径</span>约 <span style="letter-spacing:.05pt;">60n</span>m</p>
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<span style="letter-spacing:.1pt;">.</span>下<span style="letter-spacing:.1pt;">列</span>相<span style="letter-spacing:.1pt;">关</span>“热<span style="letter-spacing:.1pt;">现象</span>”,<span style="letter-spacing:.1pt;">对</span>其<span style="letter-spacing:.1pt;">解</span>释<span style="letter-spacing:.1pt;">正</span>确<span style="letter-spacing:.1pt;">的</span>是( ▲ )</p>
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<span style="letter-spacing:.05pt;">A</span>.<span style="letter-spacing:.1pt;">在</span>汽<span style="letter-spacing:.1pt;">油</span>机<span style="letter-spacing:.1pt;">做</span>功<span style="letter-spacing:.1pt;">冲</span>程<span style="letter-spacing:.1pt;">中</span>,<span style="letter-spacing:.1pt;">汽</span>油<span style="letter-spacing:.1pt;">燃</span>烧<span style="letter-spacing:.1pt;">释</span>放<span style="letter-spacing:.1pt;">的</span>热<span style="letter-spacing:.1pt;">量</span>全<span style="letter-spacing:.1pt;">部</span>转<span style="letter-spacing:.1pt;">化</span>变<span style="letter-spacing:.1pt;">成</span>机<span style="letter-spacing:.1pt;">械</span>能 <span style="letter-spacing:.05pt;">B</span><span style="letter-spacing:.1pt;">.</span>电<span style="letter-spacing:.1pt;">冰</span>箱<span style="letter-spacing:.1pt;">散</span>热<span style="letter-spacing:.1pt;">器</span>摸<span style="letter-spacing:.1pt;">起</span>来<span style="letter-spacing:.1pt;">烫</span>手<span style="letter-spacing:.1pt;">,</span>这<span style="letter-spacing:.1pt;">主</span>要<span style="letter-spacing:.1pt;">是</span>电<span style="letter-spacing:.1pt;">流</span>的<span style="letter-spacing:.1pt;">热</span>效<span style="letter-spacing:.1pt;">应</span>造<span style="letter-spacing:.1pt;">成</span>的</p>
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<span style="letter-spacing:.1pt;">.</span>夏<span style="letter-spacing:.1pt;">天</span>,<span style="letter-spacing:.1pt;">打</span>开<span style="letter-spacing:.1pt;">电</span>冰<span style="letter-spacing:.1pt;">箱</span>看<span style="letter-spacing:.1pt;">到</span>的<span style="letter-spacing:.1pt;">“</span>白<span style="letter-spacing:.1pt;">气</span>”是<span style="letter-spacing:.1pt;">冰</span>箱<span style="letter-spacing:.1pt;">内</span>的<span style="letter-spacing:.1pt;">水</span>蒸<span style="letter-spacing:.1pt;">气</span>液<span style="letter-spacing:.1pt;">化</span>而<span style="letter-spacing:.1pt;">形</span>成的</p>
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<span style="letter-spacing:.05pt;">A</span>.<span style="letter-spacing:.1pt;">电</span>饭<span style="letter-spacing:.1pt;">锅</span>用<span style="letter-spacing:.1pt;">超</span>导<span style="letter-spacing:.1pt;">材</span>料<span style="letter-spacing:.1pt;">做</span>加<span style="letter-spacing:.1pt;">热</span>器<span style="letter-spacing:.1pt;">可</span>以<span style="letter-spacing:.1pt;">大</span>大<span style="letter-spacing:.1pt;">提</span>高<span style="letter-spacing:.1pt;">电</span>能<span style="letter-spacing:.1pt;">转</span>化<span style="letter-spacing:.1pt;">为</span>内<span style="letter-spacing:.1pt;">能</span>的<span style="letter-spacing:.1pt;">效</span>率 <span style="letter-spacing:.05pt;">B</span>.<span style="letter-spacing:.1pt;">原</span>子<span style="letter-spacing:.1pt;">核</span>式<span style="letter-spacing:.1pt;">结</span>构<span style="letter-spacing:.1pt;">模</span>型<span style="letter-spacing:.1pt;">是</span>卢<span style="letter-spacing:.1pt;">瑟</span>福<span style="letter-spacing:.1pt;">根</span>据<span style="letter-spacing:.1pt;">科</span>学<span style="letter-spacing:.1pt;">猜</span>想<span style="letter-spacing:.1pt;">建</span>立<span style="letter-spacing:.1pt;">起</span>来的</p>
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<span style="letter-spacing:.1pt;">.</span>测<span style="letter-spacing:.1pt;">量</span>电<span style="letter-spacing:.1pt;">流</span>时<span style="letter-spacing:.1pt;">,</span>需<span style="letter-spacing:.1pt;">要</span>将<span style="letter-spacing:.1pt;">电</span>流<span style="letter-spacing:.1pt;">表</span>串<span style="letter-spacing:.1pt;">联</span>在<span style="letter-spacing:.1pt;">电</span>路<span style="letter-spacing:.1pt;">中</span>,<span style="letter-spacing:.1pt;">通</span>常<span style="letter-spacing:.1pt;">,</span>电<span style="letter-spacing:.1pt;">流</span>表<span style="letter-spacing:.1pt;">的</span>电<span style="letter-spacing:.1pt;">阻</span>比<span style="letter-spacing:.1pt;">待</span>测<span style="letter-spacing:.1pt;">电</span>路<span style="letter-spacing:.1pt;">的</span>电<span style="letter-spacing:.1pt;">阻</span>小<span style="letter-spacing:.1pt;">得</span>多, 因<span style="letter-spacing:.1pt;">此</span>对<span style="letter-spacing:.1pt;">测</span>量<span style="letter-spacing:.1pt;">值</span>的<span style="letter-spacing:.1pt;">影</span>响<span style="letter-spacing:.1pt;">可</span>以<span style="letter-spacing:.1pt;">忽</span>略<span style="letter-spacing:.1pt;">不</span>计<span style="letter-spacing:.1pt;">.</span>下<span style="letter-spacing:.1pt;">列</span>研<span style="letter-spacing:.1pt;">究</span>方<span style="letter-spacing:.1pt;">法</span>与<span style="letter-spacing:.1pt;">此</span>相<span style="letter-spacing:.1pt;">同</span>的<span style="letter-spacing:.1pt;">是</span>( ▲ )</p>
<p style="margin-top:0cm;margin-right:6.15pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:normal;">
<span style="letter-spacing:.05pt;">A</span>.<span style="letter-spacing:.1pt;">在</span>探<span style="letter-spacing:.1pt;">究</span>平<span style="letter-spacing:.1pt;">面</span>镜<span style="letter-spacing:.1pt;">成</span>像<span style="letter-spacing:.1pt;">特</span>点<span style="letter-spacing:.1pt;">实</span>验<span style="letter-spacing:.1pt;">中</span>,<span style="letter-spacing:.1pt;">用两</span>个相<span style="letter-spacing:.1pt;">同的</span>棋<span style="letter-spacing:.1pt;">子</span>探<span style="letter-spacing:.1pt;">究</span>像<span style="letter-spacing:.1pt;">与</span>物<span style="letter-spacing:.1pt;">的</span>大<span style="letter-spacing:.1pt;">小</span>关系</p>
<p style="margin-top:0cm;margin-right:6.15pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:normal;">
<span style="letter-spacing:.05pt;">B</span>.<span style="letter-spacing:.1pt;">根</span>据<span style="letter-spacing:.1pt;">被</span>压<span style="letter-spacing:.1pt;">物</span>体<span style="letter-spacing:.1pt;">形</span>变<span style="letter-spacing:.1pt;">大</span>小<span style="letter-spacing:.1pt;">反</span>映<span style="letter-spacing:.1pt;">压</span>力<span style="letter-spacing:.1pt;">作</span>用<span style="letter-spacing:.1pt;">效</span>果</p>
<p style="margin-top:1.55pt;margin-right:216.15pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:15.5pt;">
<span style="letter-spacing:.05pt;">C</span>.<span style="letter-spacing:.1pt;">在</span>探<span style="letter-spacing:.1pt;">究</span>二<span style="letter-spacing:.1pt;">力</span>平<span style="letter-spacing:.1pt;">衡</span>条<span style="letter-spacing:.1pt;">件</span>的<span style="letter-spacing:.1pt;">实</span>验<span style="letter-spacing:.1pt;">中</span>,<span style="letter-spacing:.1pt;">选</span>用<span style="letter-spacing:.1pt;">轻</span>质<span style="letter-spacing:.1pt;">卡</span>片 <span style="letter-spacing:.05pt;">D</span>.<span style="letter-spacing:.1pt;">在</span>研<span style="letter-spacing:.1pt;">究</span>光<span style="letter-spacing:.1pt;">的</span>传<span style="letter-spacing:.1pt;">播</span>现<span style="letter-spacing:.1pt;">象</span>时<span style="letter-spacing:.1pt;">,</span>引<span style="letter-spacing:.1pt;">入</span>光线</p>
<p style="margin-top:.95pt;margin-right:6.15pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:15.5pt;">
<span style="position:absolute;z-index:-5;left:0px;margin-left:484px;margin-top:43px;width:170px;height:78px;">
<img height="78" src="file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.jpg" width="170" />
</span>
<span style="letter-spacing:.05pt;">6</span>
<span style="letter-spacing:.1pt;">.</span>如<span style="letter-spacing:.1pt;">图</span>所<span style="letter-spacing:.1pt;">示</span>,<span style="letter-spacing:.1pt;">粗</span>糙<span style="letter-spacing:.1pt;">的</span>弧<span style="letter-spacing:.1pt;">形</span>轨<span style="letter-spacing:.1pt;">道</span>竖<span style="letter-spacing:.1pt;">直</span>固<span style="letter-spacing:.1pt;">定</span>于<span style="letter-spacing:.1pt;">水</span>平<span style="letter-spacing:.1pt;">面</span>,<span style="letter-spacing:.1pt;">一</span>小<span style="letter-spacing:.1pt;">球</span>由 A 点<span style="letter-spacing:.1pt;">以</span>速度 V 沿<span style="letter-spacing:.1pt;">轨</span>道<span style="letter-spacing:.1pt;">滚</span>下<span style="letter-spacing:.1pt;">,</span>经<span style="letter-spacing:.1pt;">另</span>一 侧<span style="letter-spacing:.1pt;">等</span>高点 B 后<span style="letter-spacing:.1pt;">到</span>达<span style="letter-spacing:.1pt;">最</span>高点 <span style="letter-spacing:-.05pt;">C</span>.<span style="letter-spacing:.1pt;">下</span>列<span style="letter-spacing:.1pt;">关</span>于<span style="letter-spacing:.1pt;">小</span>球<span style="letter-spacing:.1pt;">滚</span>动<span style="letter-spacing:.1pt;">过</span>程<span style="letter-spacing:.1pt;">的</span>分<span style="letter-spacing:.1pt;">析</span>正<span style="letter-spacing:.1pt;">确</span>的<span style="letter-spacing:.1pt;">是</span>( ▲ )</p>
<p style="margin-top:.95pt;margin-right:6.15pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:15.5pt;">
<span style="letter-spacing:.05pt;">A</span>
<span style="letter-spacing:.1pt;">.</span>整<span style="letter-spacing:.1pt;">个</span>过<span style="letter-spacing:.1pt;">程</span>只<span style="letter-spacing:.1pt;">有</span>重<span style="letter-spacing:.1pt;">力</span>在<span style="letter-spacing:.1pt;">对</span>小<span style="letter-spacing:.1pt;">球</span>做功</p>
<p style="margin-top:0cm;margin-right:-1.0pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:13.85pt;">
<span style="position:relative;top:1.0pt;letter-spacing:.05pt;">B</span>
<span style="position:relative;top:1.0pt;letter-spacing:.1pt;">.</span>
<span style="position:relative;top:1.0pt;">小<span style="letter-spacing:.1pt;">球</span>在</span> <span style="position:relative;top:1.0pt;letter-spacing:.05pt;">A</span><span style="position:relative;top:1.0pt;">、B</span> <span style="position:relative;top:1.0pt;">两<span style="letter-spacing:.1pt;">点</span>具<span style="letter-spacing:.1pt;">有</span>的<span style="letter-spacing:.1pt;">动</span>能<span style="letter-spacing:.1pt;">相</span>同</span></p>
<p style="margin-top:.1pt;margin-right:-1.0pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:normal;">
<span style="letter-spacing:.05pt;">C</span>
<span style="letter-spacing:.1pt;">.</span>小<span style="letter-spacing:.1pt;">球</span>在 <span style="letter-spacing:.05pt;">A</span>、<span style="letter-spacing:.05pt;">B</span>、C 三<span style="letter-spacing:.1pt;">点</span>的<span style="letter-spacing:.1pt;">速</span>度<span style="letter-spacing:.1pt;">大</span>小<span style="letter-spacing:.1pt;">关</span>系是 <span style="letter-spacing:.05pt;">V</span><span style="position:relative;top:1.0pt;">A</span>><span style="letter-spacing:.05pt;">V</span><span style="position:relative;top:1.0pt;">B</span>><span style="letter-spacing:.05pt;">V</span><span style="position:relative;top:1.0pt;">C</span></p>
<p style="margin-top:0cm;margin-right:-1.0pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:14.75pt;">
<span style="position:relative;top:1.0pt;letter-spacing:.05pt;">D</span>
<span style="position:relative;top:1.0pt;letter-spacing:.1pt;">.</span>
<span style="position:relative;top:1.0pt;">小<span style="letter-spacing:.1pt;">球</span>在</span> <span style="position:relative;top:1.0pt;">A</span> <span style="position:relative;top:1.0pt;">点<span style="letter-spacing:.1pt;">具</span>有<span style="letter-spacing:.1pt;">的</span>机<span style="letter-spacing:.1pt;">械</span>能<span style="letter-spacing:.1pt;">等</span>于<span style="letter-spacing:.1pt;">它</span>在</span> <span style="position:relative;top:1.0pt;">C</span> <span style="position:relative;top:1.0pt;">点<span style="letter-spacing:.1pt;">具</span>有<span style="letter-spacing:.1pt;">的</span>重<span style="letter-spacing:.1pt;">力</span>势能</span></p>
<p style="margin-top:0cm;margin-right:-1.0pt;margin-bottom:0cm;margin-left:5.65pt;margin-bottom:.0001pt;line-height:15.1pt;">
<span style="position:relative;top:1.0pt;letter-spacing:.05pt;">7</span>
<span style="position:relative;top:1.0pt;letter-spacing:.1pt;">.</span>
<span style="position:relative;top:1.0pt;">以<span style="letter-spacing:.1pt;">下</span>说<span style="letter-spacing:.1pt;">法</span>错<span style="letter-spacing:.1pt;">误</span>的是 ( ▲ </span>)</p>
</div>
<p> </p>
<p style="margin-top:.4pt;margin-right:0cm;margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;line-height:5.0pt;"> </p>
<p style="margin-top:0cm;margin-right:-1.0pt;margin-bottom:0cm;margin-left:35.75pt;margin-bottom:.0001pt;line-height:normal;">
<img height="76" src="file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image006.jpg" width="100" />
</p>
<p style="margin-top:.15pt;margin-right:18.55pt;margin-bottom:0cm;margin-left:8.65pt;margin-bottom:.0001pt;text-indent:54.0pt;line-height:97%;">
<span style="position:relative;z-index:-3;">
<span style="left:0px;position:absolute;left:364px;top:-76px;width:85px;height:76px;">
<img height="76" src="file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image008.jpg" width="85" />
</span>
</span>
<span style="position:relative;z-index:-2;">
<span style="left:0px;position:absolute;left:256px;top:-76px;width:69px;height:76px;">
<img height="76" src="file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image010.jpg" width="69" />
</span>
</span>
<span style="position:relative;z-index:-1;">
<span style="left:0px;position:absolute;left:484px;top:-76px;width:121px;height:75px;">
<img height="75" src="file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image012.jpg" width="121" />
</span>
</span>图甲 图乙 图丙 图丁</p>
<p style="margin-top:.15pt;margin-right:18.55pt;margin-bottom:0cm;margin-left:8.65pt;margin-bottom:.0001pt;line-height:97%;">
<span style="letter-spacing:.05pt;">A</span>
<span style="letter-spacing:-.2pt;">.</span>(图<span style="letter-spacing:.1pt;">甲</span><span style="letter-spacing:-.15pt;">)</span>将<span style="letter-spacing:.1pt;">测</span>电<span style="letter-spacing:.1pt;">笔</span>笔<span style="letter-spacing:.1pt;">尖</span>与<span style="letter-spacing:.1pt;">火</span><span style="letter-spacing:-.15pt;">线</span>(<span style="letter-spacing:.05pt;">220</span><span style="letter-spacing:-.05pt;">V</span><span style="letter-spacing:-.15pt;">)</span>接<span style="letter-spacing:.1pt;">触</span><span style="letter-spacing:-.25pt;">,</span>手<span style="letter-spacing:.1pt;">抵</span>金<span style="letter-spacing:.1pt;">属帽</span><span style="letter-spacing:-.15pt;">,</span>氖<span style="letter-spacing:.1pt;">管</span>发<span style="letter-spacing:.1pt;">光</span><span style="letter-spacing:-.25pt;">,</span>若<span style="letter-spacing:.1pt;">笔</span>内<span style="letter-spacing:.1pt;">电</span>阻<span style="letter-spacing:.1pt;">为</span>一<span style="letter-spacing:.1pt;">百</span>万欧 姆<span style="letter-spacing:.1pt;">,</span>尽<span style="letter-spacing:.1pt;">管</span>其<span style="letter-spacing:.1pt;">余</span>电<span style="letter-spacing:.1pt;">阻</span>未<span style="letter-spacing:.1pt;">知</span>,<span style="letter-spacing:.1pt;">也</span>可<span style="letter-spacing:.1pt;">以</span>判<span style="letter-spacing:.1pt;">断</span>出<span style="letter-spacing:.1pt;">流</span>经<span style="letter-spacing:.1pt;">人</span>体<span style="letter-spacing:.1pt;">的</span>电<span style="letter-spacing:.1pt;">流</span>不<span style="letter-spacing:.1pt;">会</span>超过 <span style="letter-spacing:.05pt;">2.</span><span style="letter-spacing:-.05pt;">2</span><span style="letter-spacing:.1pt;">×</span><span style="letter-spacing:.05pt;">1</span><span style="letter-spacing:-.05pt;">0</span><span style="position:relative;top:-5.5pt;">-4</span><span style="letter-spacing:.05pt;">A</span>.</p>
<p style="margin-top:1.55pt;margin-right:18.35pt;margin-bottom:0cm;margin-left:8.65pt;margin-bottom:.0001pt;line-height:15.0pt;">
<span style="position:absolute;z-index:-4;left:0px;margin-left:258px;margin-top:75px;width:1px;height:3px;">
<img height="3" src="file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image014.jpg" width="1" />
</span>
<span style="letter-spacing:.05pt;">B</span>. 设<span style="letter-spacing:.1pt;">人</span>体<span style="letter-spacing:.1pt;">电</span>阻<span style="letter-spacing:.1pt;">约</span>为 <span style="letter-spacing:.05pt;">1</span><span style="letter-spacing:-.05pt;">0</span><span style="position:relative;top:-5.5pt;">4</span><span style="letter-spacing:.1pt;">Ω</span><span style="letter-spacing:-.35pt;">,</span>当<span style="letter-spacing:.1pt;">人</span>的<span style="letter-spacing:.1pt;">两</span>手<span style="letter-spacing:.1pt;">分</span>别<span style="letter-spacing:.1pt;">接</span>触<span style="letter-spacing:.1pt;">一</span>节<span style="letter-spacing:.1pt;">干</span>电<span style="letter-spacing:-.25pt;">池</span>(<span style="letter-spacing:.05pt;">1.5</span><span style="letter-spacing:-.05pt;">V</span><span style="letter-spacing:-.35pt;">)</span>两<span style="letter-spacing:.1pt;">极时</span><span style="letter-spacing:-.25pt;">,</span>流<span style="letter-spacing:.1pt;">经</span>人<span style="letter-spacing:.1pt;">体</span>的<span style="letter-spacing:.1pt;">电</span>流约 为 <span style="letter-spacing:.05pt;">1.</span><span style="letter-spacing:-.05pt;">5</span>×<span style="letter-spacing:.05pt;">10</span><span style="position:relative;top:-5.5pt;">-4</span><span style="letter-spacing:-.05pt;">A</span>,<span style="letter-spacing:.1pt;">人</span>体<span style="letter-spacing:.1pt;">没</span>有<span style="letter-spacing:.1pt;">危险</span>.</p>
<p style="margin-top:1.55pt;margin-right:18.35pt;margin-bottom:0cm;margin-left:8.65pt;margin-bottom:.0001pt;line-height:15.0pt;">
<span style="letter-spacing:.05pt;">C</span>
<span style="letter-spacing:-.05pt;">.</span>(图<span style="letter-spacing:.1pt;">乙</span><span style="letter-spacing:-.15pt;">)</span>是<span style="letter-spacing:.1pt;">固</span>定<span style="letter-spacing:.1pt;">在</span>墙<span style="letter-spacing:.1pt;">壁</span>上<span style="letter-spacing:.1pt;">的</span>三<span style="letter-spacing:.1pt;">孔</span>插<span style="letter-spacing:.1pt;">座</span><span style="letter-spacing:-.25pt;">,</span>其中“<span style="letter-spacing:.1pt;">①</span><span style="letter-spacing:-.15pt;">”</span>孔<span style="letter-spacing:.1pt;">应</span>与<span style="letter-spacing:.1pt;">地</span>线<span style="letter-spacing:.1pt;">相</span>连<span style="letter-spacing:-.25pt;">;</span>(图<span style="letter-spacing:.1pt;">丙</span><span style="letter-spacing:-.15pt;">)</span>为<span style="letter-spacing:.1pt;">用</span>电<span style="letter-spacing:.1pt;">器</span>的<span style="letter-spacing:.1pt;">三</span>脚 插<span style="letter-spacing:.1pt;">头</span>,<span style="letter-spacing:.1pt;">若</span>不<span style="letter-spacing:.1pt;">小</span>心<span style="letter-spacing:.1pt;">将</span>“<span style="letter-spacing:.1pt;">①”</span>脚<span style="letter-spacing:1.05pt;">折</span>断<span style="letter-spacing:.1pt;">丢</span>失<span style="letter-spacing:.1pt;">,</span>用<span style="letter-spacing:.1pt;">电</span>器<span style="letter-spacing:.1pt;">仍</span>能<span style="letter-spacing:.1pt;">工作</span>.</p>
<p style="margin-top:1.55pt;margin-right:18.35pt;margin-bottom:0cm;margin-left:8.65pt;margin-bottom:.0001pt;line-height:15.0pt;">
<span style="letter-spacing:.05pt;">D</span>
<span style="letter-spacing:-.2pt;">.</span>(图<span style="letter-spacing:.1pt;">丁</span><span style="letter-spacing:-.25pt;">)</span>在<span style="letter-spacing:.1pt;">正</span>常<span style="letter-spacing:.1pt;">情</span>况<span style="letter-spacing:.1pt;">下</span><span style="letter-spacing:-.15pt;">,</span><span style="letter-spacing:-.25pt;">经</span><span style="letter-spacing:.1pt;">“</span>火<span style="letter-spacing:.1pt;">线</span>→电<span style="letter-spacing:.1pt;">灯→</span>零<span style="letter-spacing:.1pt;">线</span><span style="letter-spacing:-.25pt;">”</span>的<span style="letter-spacing:.1pt;">电</span>流<span style="letter-spacing:.1pt;">处</span>处<span style="letter-spacing:.1pt;">相等</span><span style="letter-spacing:-.25pt;">,</span>若<span style="letter-spacing:.1pt;">某</span>人<span style="letter-spacing:.1pt;">不</span>小<span style="letter-spacing:.1pt;">心</span>碰<span style="letter-spacing:.1pt;">到</span>火<span style="letter-spacing:.1pt;">线</span>裸 露<span style="letter-spacing:.1pt;">处</span>,<span style="letter-spacing:.1pt;">会</span>导致 <span style="letter-spacing:.05pt;">I</span><span style="position:relative;top:1.0pt;">1</span><<span style="letter-spacing:.05pt;"> I</span><span style="position:relative;top:1.0pt;">2</span>.<span style="letter-spacing:.1pt;">当</span>“漏<span style="letter-spacing:.1pt;">电</span>保<span style="letter-spacing:.1pt;">护器</span>”检<span style="letter-spacing:.1pt;">测到</span>“两<span style="letter-spacing:.1pt;">线”</span>电<span style="letter-spacing:.1pt;">流</span>不<span style="letter-spacing:.1pt;">等</span>时<span style="letter-spacing:.1pt;">会</span>自<span style="letter-spacing:.1pt;">动</span>切<span style="letter-spacing:.1pt;">断</span>线<span style="letter-spacing:.1pt;">路</span>.</p>不限江苏试题试卷免费docx
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/UploadFiles/sj/2019/5/201952814543.docx
<script type="text/javascript" src="/cuplayer4/js/swfobject.js"></script>
<div class="video" id="CuPlayer"><b><img src="/cuplayer4/images/loading.gif" /> 网页视频播放器加载中,请稍后...<a href="http://www.cuplayer.com/cuplayer" target="_blank">点此升级>></a></b></div>
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var so = new SWFObject("/cuplayer4/player.swf","myCuPlayer","940","465","9","#000000");
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so.addParam("allowscriptaccess","always");
so.addParam("wmode","opaque");
so.addParam("quality","high");
so.addParam("salign","lt");
so.addVariable("JcScpAutoPlay","no"); //是否自动播放
so.addVariable("JcScpShowRightmenu","no"); //
so.addVariable("JcScpVideoPath","/UploadFiles/sj/2019/5/201952814543.docx"); //视频文件地址
so.addVariable("JcScpImg","");//视频缩略图
so.addVariable("JcScpSharetitle","酷播V4.0(CuPlayerV4.0)版使用官方演示实例");
so.write("CuPlayer");
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<script language=javascript src="/cuplayer4/js/action.js" type=text/javascript></script>
<script type="text/javascript" src="/cuplayer3/images/swfobject.js"></script>
<div class="video" id="CuPlayer"><b><img src="/cuplayer3/images/loading.gif" /> 网页视频播放器加载中,请稍后...<a href="http://www.cuplayer.com/cuplayer" target="_blank">点此升级>></a></b></div>
<script type="text/javascript">
var so = new SWFObject("/cuplayer3/CuPlayerMiniV3_Black_S.swf","myCuPlayer","862","485","9","#000000");
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so.addParam("quality","high");
so.addParam("salign","lt");
so.addVariable("CuPlayerFile","/UploadFiles/sj/2019/5/201952814543.docx"); //视频文件地址
so.addVariable("CuPlayerImage","");//视频缩略图
so.addVariable("CuPlayerShowImage","true");
so.addVariable("CuPlayerWidth","862");
so.addVariable("CuPlayerHeight","485");
so.addVariable("CuPlayerAutoPlay","false");
so.addVariable("CuPlayerAutoRepeat","true");
so.addVariable("CuPlayerShowControl","true");
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so.addVariable("CuPlayerAutoHideTime","6");
so.addVariable("CuPlayerVolume","80");
so.addVariable("CuPlayerGetNext","false");
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<script language=javascript src="/cuplayer4/js/action.js" type=text/javascript></script>
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{PE.Field id="cone" fieldname="Title" /}-试卷中心-初中物理在线
{PE.Field id="cone" fieldname="gourl" /}
{PE.Label id="顶部-试卷" currentId="{PE.Field id="cone" fieldname="NodeID" /}"/}
当前位置:首页 > {PE.Label id="当前位置导航" nodeId="{PE.Field id="cone" fieldname="NodeID" /}" /} > 内容详情
{PE.Field id="cone" fieldname="Title" /}
{PE.Field id="cone" fieldname="SoftIntro" /}
只能预览部分内容,查看全部内容需要下载哦~
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{PE.Field id="cone" fieldname="infopoint" /}个点券
- {PE.Label id="上一篇" unit="份试卷" itemId="116211" nodeArray="{PE.Field id="cone" fieldname="NodeID" /}" titleLength="90" /}
- {PE.Label id="下一篇" unit="份试卷" itemId="116211" nodeArray="{PE.Field id="cone" fieldname="NodeID" /}" titleLength="90" /}
资料审核:{PE.Field id="cone" fieldname="user" /}
{PE.Field id="cone" fieldname="special" /}
资料格式:{PE.Field id="cone" fieldname="ico" /}
资料版本:{PE.Field id="cone" fieldname="banben" /}
适用地区:{PE.Field id="cone" fieldname="area" /}
文件大小:{PE.Field id="cone" fieldname="SoftSize" /}{PE.Field id="cone" fieldname="SoftSizeUnit" /}
资料作者:{PE.Field id="cone" fieldname="author" /}
审核人员:{PE.Field id="cone" fieldname="editor" /}
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{PE.Field id="cone" fieldname="Title" /}
{PE.Label id="A评论标签" nodeId="{PE.Field id="cone" fieldname="NodeID" /}" /}
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