The report noted that nicotine breathed in by a smoker increased the need of the heart ox

发布时间：2020-08-16 07:12:39


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

网友回答

A. to
B. on
C. in
(答案→)D. for
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