下列不属于呼吸系统的组成的是（ ）
A. 鼻
B. 咽
C. 肺
D. 肝
一般成年男子安静每分钟呼吸次数是14-16次，女子是16-18次
A. 对
B. 错
The famous writer _____ one new book in the past two years .
A. is writing
B. was writing
C. wrote
D. has written
- Can you give me some advice on how to be slimmer?- Eat __________ meat and ___________cakes.A. less; less B. fewer; fewerC. less; fewerD. fewer; less
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