people have always been curious how living things on the earth exactly began.A. inB. atC.

发布时间：2020-08-16 15:27:48

people have always been curious      how living things on the earth exactly began.
A. in
B. at
C. of
D. about

网友回答

A. in
B. at
C. of
(答案→)D. about
解析：介词辨析。句意：人们总是对地球上的生物如何确切的出现的很好奇。选D，关于，表示好奇的对象。
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