2. 外语
  3. The word "minute" in the first sentence most probably means ______. The main idea of the passage is that ______.

The word "minute" in the first sentence most probably means ______. The main idea of the passage is that ______.

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问题 The word "minute" in the first sentence most probably means ______.
The main idea of the passage is that ______.
选项 A、the sun is our ultimate source of energy
B、the tiny fraction of the sun’s energy which we use is used indirectly
C、we are making progress toward utilizing the solar energy fully
D、one device using solar energy directly has been developed
答案C
解析 主旨题。文章首先阐述太阳给予了地球能源，然后论述了人类由于知识的缺乏对能源的有限利用，最后介绍了我们对于能源的发展利用。所以其主要还是讲人们对于充分利用太阳能还是有所进步的。因此，C选项体现出了全文的主旨。
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