参加体育锻炼要注意()的卫生问题。
A.坚持锻炼的经常性
B.要循序渐进
C.遵循全面锻炼的原则
D.以上都对
参考答案:D
Now their talks have reached a key stage________one side must give in to the other.[ ]
A. which
B. that
C. where
D. how
阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者睡眠时,若采用鼻腔持续正压通气,应将面罩内压力应调至()
A.0.49~1.47kPa(5~15cmH2O)
B.0.67~2.00kPa(5~15cmH2O)
C.1~2kPa
D.1.96~2.94kPa(20~30cmH2O)
E.2.67~4.00kPa(20~30cmH2O)