In our own galaxy, the Milky Way, there are perhaps 200 billion stars, a small p

游客2025-01-31 28

问题 In our own galaxy, the Milky Way, there are perhaps 200 billion stars, a small part of them probably have planets on which life is feasible.

选项 A、a small fraction in which
B、a small fraction of which
C、a small fraction which
D、which a fraction of

答案 B

解析结构应用。英语的定语从句(不论是限定性或非限定性)中，当关系代词作介词宾语时，介词前置，其中whom指人，which指物；而介词of表示整体中的一部分，比用in准确，所以B为答案。

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