绞窄性疝的处理原则为（）
A.紧急手术
B.手法复位
C.输液、输血
D.抗感染
E.暂不处理
参考答案：A
_______ full preparations, we decided to put off the party till next week.
A．We did not make
B．Having not made
C．We had not made
D．Not having made
日维护给单节落后电池补充电采用与电池组并联，稳流方式电流按（）h率。
A、20
B、15
C、10
D、5
