1岁以下婴幼儿呼吸频率平均值为()。
A.30~40次/分
B.25~30次/分
C.20~25次/分
D.18~20次/分
参考答案:A
重度高血压患者可出现的分裂是()
A.S2反常分裂
B.S2生理分裂
C.S2通常分裂
D.S2固定分裂
E.S1分裂
— What do you think of Town Cinema?
—Very good. It's _____ than other cinemas and it has _____ service.[ ]
A. expensive, the friendliest
B. cheaper, the friendliest
C. the cheapest, the most friendly
D. more expensive, the worst