What does the word "elusive" in the first sentence mean? The expression "renewable energy" (Para 5, last sentence) is equivalen

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问题 What does the word "elusive" in the first sentence mean?
The expression "renewable energy" (Para 5, last sentence) is equivalent to ______.

选项 A、dirty fuel.
B、wind power.
C、solar energy.
D、cleaner energy.

答案D

解析 wind power风能,solar energy太阳能,选项皆为renewable energy (可更新能源),单选不全面,故选用cleaner energy(较为清洁的能源),与dirty fuel相对立。
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