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How much of the solar radiation can be converted into usable energy?

单选题
2022-05-21 16:37
A、5%-10%.
B、10%-15%.
C、30%-45%.
D、40%-55%.
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正确答案
B

试题解析

录音中指出太阳能的使用的第一个问题是“the cells convert only 10%-15%of the radiation from the sun into energy”,由此可见只有10%到15%的太阳辐射可以被转化为可利用的能源,因此选B。

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