Only 40% of the energy converted in power generation is useful.
Only 40% of the energy converted in power generation is useful.
A、T
B、F
【正确答案】:A
【题目解析】:听力原文:Approximately 60% of the energy converted in power generation is wasted. If even a small proportion of this wasted heat could be converted to useful power, it would be a good thing.本题考查对应数字。原文说发电过程中大约有60%的能量被浪费掉了。如果这些废热中的一小部分能转化为有用的能量,那将是一件好事。题干说在发电过程中,只有40%的能量转换是有用的。根据原文所说60%的能量被浪费掉,可知40%被利用了。与原文说法一致,所以正确。
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