单选题：The air in the lungs changes through ________.

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题目内容：
The air in the lungs changes through ________. A．inhaling some amount of oxygen
B．the evaporation of moisture
C．exhaling some amount of carbon dioxide
D．generating a passage for evaporation Part IV
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答案解析：

The finance guys make friends with politicians in the hope o

The finance guys make friends with politicians in the hope of making some burden

分类：英语六级  题型：单选题
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的值为（　　）。

的值为（　　）。A． B． C． D．

分类：英语六级  题型：单选题
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