题目内容
【题目】The waste can be recycled into new products, which __________ will save natural resources.
A. in turn B. in return
C. in order D. in time
【答案】A
【解析】句意:废物可回收利用生产出新的产品,反过来,又能节省自然资源。in turn依次;轮流;相应地;转而;in return作为报答;in order有效的;正常;in time 迟早;及时。

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