问题
ing to the latest research, getting enough sleep is _____to maintaining good health and reducing stress.
A:practical
B:contradictory
C:essential
D:alternative;
B:contradictory
C:essential
D:alternative;
正确答案是：
同类题型
______ Tom is ill, _______ he goes to school.
is quite _______ to you, I willvisit you next Tuesday
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young trees have been planted along the north of China these years.
Mum, I can’ t do the washing on my own.There is too much work—All right.I you with it[ ]