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  3. According to the author, applying biotechnology to industry The word "depleted"(Line 2, Paragraph 3) can be substituted by

According to the author, applying biotechnology to industry The word "depleted"(Line 2, Paragraph 3) can be substituted by

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问题 According to the author, applying biotechnology to industry
The word "depleted"(Line 2, Paragraph 3) can be substituted by
选项 A、exhausted.
B、discarded.
C、abandoned.
D、wasted.
答案A
解析 本题问第三段第二行"depleted"一词可以被下面哪个词替换。该词所在句的前半句"They could accurately be called ’renewables’"，说明它们是可再生的，紧接着用"since"给出原因"nothing is depleted to make them"．，然后对此做进一步解释"They would be part of the natural carbon cycle，borrowing that element from the atmosphere for a few months，and returning it when they were burned or dumped"．这说明在生产它们的时候没有什么东西被消耗掉，只是进行了自然界的碳循环，故"被消耗掉"正确。丢弃、放弃、浪费均不合文意。
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