2. 外语
  3. (The atmosphere) (is consisted) of certain gases (mixed together) (in) definite proportions.

(The atmosphere) (is consisted) of certain gases (mixed together) (in) definite proportions.

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问题 (The atmosphere) (is consisted) of certain gases (mixed together) (in) definite proportions.
选项 A、The atmosphere
B、is consisted
C、mixed together
D、in
答案B
解析 consist of sth.由什么构成，consist是不及物动词，不用被动。
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成人本科学位英语

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