酒精对结核杆菌的杀灭作用强,对肝炎病毒的杀灭效果较差。( )
参考答案:对
肘关节CT检查的体位是 ()
A.仰卧,两手上举,手心向上
B.俯卧,两手上举,手心向上
C.俯卧,两手上举,手心向下
D.仰卧,两手上举,手心向下
E.俯卧,两臂下垂,手心向上
--- do you surf the Internet?
--- Once a week.
A.How often
B.How long
C.How soon
D.How many