气性坏疽病人用过的敷料最好的灭菌方法是
A．高压蒸气灭菌
B．焚毁
C．煮沸消毒1h
D．3%碘酊浸泡
E．3%H2O2浸泡
参考答案：B
Jack borrowed the tie _______ his father. [ ]
A. to
B. of
C. from
D. by
列尾装置在始发站发生故障，能在（）分钟内处理并恢复正常，可不按列尾装置故障处理。
A.20
B.30
C.40
D.50
