There is no simple answer, ___________ i

昕玥2019-12-17  10

问题 There is no simple answer, ___________ is often the case in science.

选项 A.thatB.whenC.asD.what

答案C

解析考查定语从句。as引导定语从句,指代整个主句内容,有“正如”之意。定语从句部分意为“在科学上,这是常有的事”。故选C。
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