动脉血气分析pH的正常值是()
A.7.35~7.45
B.6.35~7.45
C.7.4~7.65
D.7.45~7.55
E.6.45~7.45
参考答案:A
The closing music________out when the hero rides off into the sunset.[ ]
A. faded
B. would fade
C. has faded
D. fades
手术前进行外科手消毒的范围是()
A.双手手掌
B.双手
C.双手及前臂
D.双手、前臂及肘部
E.双手、前臂及肘上10cm