_____ is often the case with a new idea, much preliminary activity and optimisti

游客2024-09-03  9

问题 _____ is often the case with a new idea, much preliminary activity and optimistic discussion produced no concrete proposals.

选项 A、That
B、It
C、This
D、As

答案 D

解析 考查as作为关系代词的用法。此句中,as引导非限制性定语从句,指代整个主句,as意为“正如……一样”,其他三项均不能引导非限制性定语从句,所以选D。
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