小儿腹泻重症区别于轻症的要点是
A.重症腹泻体温升高B.大便腥臭有黏液C.每日大便可达十余次D.大便镜检有大量脂肪球E.有水、电解质紊乱和酸中毒
参考答案:E
It is widely accepted that young babies learn to do things because certain acts lead to _______.[ ]
A. rewards
B. prizes
C. awards
D. results
装置进油前为什么要进行贯通试压?