外科洗手的目的是()
A.清除指甲、手、前臂的污物和暂居菌
B.去除手部皮肤污垢、碎屑和部分致病菌
C.杀灭手部微生物
D.减少术者的手感染,以达到保护医生的目的
参考答案:A
— Did you catch what I said?
— Sorry. I ______ a text message just now. [ ]
A. had answering
B. have answered
C. would answer
D. was answering
建设单位领取施工许可证后,因故不能按期开工的,应当向发证机关申请延期,延期次数和每次期限分别为( )。
A.次和3个月
B.2次和6个月
C.2次和3个月
D.1次和6个月