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The flow of an electric current in a regular conductor is made possible by the fact that______. At very low temperatures, super
The flow of an electric current in a regular conductor is made possible by the fact that______. At very low temperatures, super
admin
2009-06-15
52
问题
The flow of an electric current in a regular conductor is made possible by the fact that______.
At very low temperatures, superconductivity in a metal occurs where______.
选项
A、electrons do not move freely through the metal
B、electrons are crowded together
C、paired electrons move uninterruptedly
D、paired electron dance together to and fro
答案
C
解析
题干涉及的内容位于第三段中的二、三、四句,原文为“低温时,电子结合成对,并且可以没有任何阻力”地作和谐运动。与选项C含义相同。
转载请注明原文地址:https://kaotiyun.com/show/VPLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
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