excited Geoff Marcy most was there were planets in other solar system where life might e

发布时间：2020-08-16 10:27:44


     excited Geoff Marcy most was      there were planets in other solar system where life might exist.
A. It; if
B. That; whether
C. What; whether
D. What; that

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A. It; if
B. That; whether
C. What; whether
(答案→)D. What; that
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