2. 外语
  3. The word "minute" in the first sentence most probably means ______. The extent to which mankind utilizes solar energy available

The word "minute" in the first sentence most probably means ______. The extent to which mankind utilizes solar energy available

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问题 The word "minute" in the first sentence most probably means ______.
The extent to which mankind utilizes solar energy available is approximately ______.
选项 A、less than 1%
B、5%
C、50%
D、100% but indirectly
答案A
解析 细节题。从文章第二句话“It is reported that some scientists believe less than 1% of the solar energy fallen on the earth has been used so far．”可知：目前为止，人们只用了太阳能的1%。因此不难得出答案A。
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