密封蒸汽压力额定值是多少?如何调节?
参考答案:
轴封母管的蒸汽压力为0.12MPa。由调节阀LBW10AA201自动调节。
I _____ this book for two weeks. I have to return it now. [ ]
A. borrowed
B. have borrowed
C. kept
D. have kept
患儿8个月,腹泻2天,稀便每日7~8次,精神尚好,皮肤弹性稍差,轻度眼窝下陷,尿稍少,四肢不凉。其脱水程度是()。
A.轻度脱水
B.中度脱水
C.重度脱水
D.不脱水
E.重度脱水伴酸中毒