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The flow of an electric current in a regular conductor is made possible by the fact that______. The best advantage of new ceram
The flow of an electric current in a regular conductor is made possible by the fact that______. The best advantage of new ceram
admin
2009-06-15
73
问题
The flow of an electric current in a regular conductor is made possible by the fact that______.
The best advantage of new ceramic materials over metal superconductors is ______.
选项
A、their inexpensive cost
B、their more practical uses
C、their better quality in conductivity
D、their nature for multi-application
答案
A
解析
见文章第五段的首句,原文为“新型的陶瓷材料可用相对便宜的液氮来保持超导,相比之下,金属超导需要温度更低、价格昂贵的液氦来维持”,与选项A含义相符。
转载请注明原文地址:https://kaotiyun.com/show/tPLd777K
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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职称英语理工类A级
职称英语
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