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Earth is believed by an object the size of Mars at some point in the distant pas

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Earth is believed by an object the size of Mars at some point in the distant pas

Earth is believed ______ by an object the size of Mars at some point in the distant past before itssurface cooled.

A.to be hit B.to have hit
C.to have been hit D.to hit

试题答案

C

解析试题