2. 外语
  3. The atmosphere ______ certain gases mixed together in definite proportion.

The atmosphere ______ certain gases mixed together in definite proportion.

admin2012-03-02  45
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。
转载请注明原文地址:https://kaotiyun.com/show/nmf7777K
0

大学英语四级

相关试题推荐
随机试题
最新回复(0)