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职称英语
The atmosphere ______ certain gases mixed together in definite proportion.A、cons
The atmosphere ______ certain gases mixed together in definite proportion.A、cons
游客
2024-02-21
30
管理
问题
The atmosphere ______ certain gases mixed together in definite proportion.
选项
A、consists of
B、consists in
C、insists on
D、persists in
答案
A
解析
本题考查动词短语辨析。选择中,consist of=be made up of或be composed of由…组成;consist in=lie in在于;insist on=persist in:坚持,执意。本句的意思为:“大气层由多种气体混合组成,它们各占一定比率”。故A符合题意。
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