题目内容
_Stressful environments lead to unhealthy behaviors such as poor eating habits,which_______increase the risk of heart disease.
| A.in turn | B.in return |
| C.by chance | D.by turns |
A
考查介词。介词短语in turn的意思是“依次,反过来”,符合语境;in return的意思是“作为……的回报”,by chance“偶然”;by turns “轮流地,逐个地”。
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