[题目]Whether lifeon any other planet in the solar system still remains a question.A.entersB.existsC.signalsD.marks 题目和参考答案——青夏教育精英家教网—

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【题目】Whether lifeon any other planet in the solar system still remains a question.
A.enters
B.exists
C.signals
D.marks

【答案】B
【解析】考查动词辨析。句意: 太阳系中任何其他的行星上是否存在生命仍是个问题。enter进入; exist存在; signal发出信号; mark做记号。所以选B。

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