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

练习册系列答案
相关题目
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