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Which of the following is true within an atom according to the passage? [br] The
Which of the following is true within an atom according to the passage? [br] The
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2024-02-19
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问题
Which of the following is true within an atom according to the passage? [br] The direct reason for your body shock after you have walked across a carpet is that ______.
选项
A、you are trying to be like a Van de Graaff generator
B、your body have collected extra electrons when you are walking
C、the extra electrons move through your body and into other subjects
D、the moving of the extra electrons are blocked by your shoes
答案
C
解析
本题问“你走过地毯后产生身体受到静电电击的直接原因是……”。文章第三段后部分讲的是静电电击的现象。文中说电击是你走过地毯后身体带了多余的电荷的缘故。你的身体就像一个Van de Graaff发生器,充满了要逃逸的多余电子。电子逃回到地毯的途径被你穿的鞋子挡住了,但是它们可以通过你的手移动到你触及的其他物体,造成电击现象。故[C]“多余电子通过你的身体到其他物体上”正确。[A]“你在尽力成为一个Van de Graaff发生器”。本文最后一句说,如果你颠倒了你的朋友,你就告诉他们你在尽力成为一个Van de Graaff发生器,这是个开玩笑的说法,并不是电击现象产生的真正原因。[B]“当你走过的时候身体上集结了多余的电荷”。你走过地毯后身体上集结了多余的电荷,但是不接触其他物体,电荷没有逃逸的途径,也不会发生流动,造成电击。本项只是部分原因,不是直接原因。[D]“电荷的流动被你的鞋挡住了”。本项不是直接原因,电荷被挡住了不能逃回地毯,但不能保证离开人体造成逃逸,产生电击现象,所以不正确。
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