在东风4B型内燃机车进行电气全面检查时,如控制风缸压力在350kPa以上,应将1-6GK置于运转位。
参考答案:错
—Look! A book is on the floor. Whose is it?
—It ______ be Rick’s. It has his name on it.
A.mustn’t
B.can’t
C.must
D.need
小儿腹泻中度脱水,第1天静脉补液总量为(ml/kg)
A.150~180
B.90~120
C.120~150
D.60~90
E.180~210