Today there has been a change of attitude towards nature. This is shown in ______. The pace of recycling will have to be artifi

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问题 Today there has been a change of attitude towards nature. This is shown in ______.
The pace of recycling will have to be artificially quickened because ______.

选项 A、nature’s own pace is slowing down rapidly
B、the "working capital" of recycled material has all been used up
C、the earth’s resources cannot be replaced by man
D、the earth’s growing population requires more and more resources

答案D

解析 本题考查对文章中关键句子的理解,也属细节题。本题可从第三段最后一句中得出答案,"But the margins are getting smaller and if men,in even larger numbers,are going to require even larger quantities,the pace of recycling will have to be artificially quickened".这里讲到,人类的数量日益增加对资源的需求也随之增加,为了使地球资源保持平衡的消耗速度,就必须人为地加快对资源再循环利用的进程。
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