在我国医院分级管理中,医院共分为三级九等。
参考答案:错
We used to _____every day when we were children.
A.swim
B.swimming
C.be swimming
D.going swimming
_____ giving a gift ______ you feel easy?[ ]
A. Is/make
B. Dose/make
C. Dose/makes
D. Do/make