题目内容
The report noted that nicotine breathed in by a smoker increased the need of the heart ________ oxygen
A.to | B.on | C.in | D.for |
D
解析
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题目内容
The report noted that nicotine breathed in by a smoker increased the need of the heart ________ oxygen
A.to | B.on | C.in | D.for |
D
解析