机械性肠梗阻主要表现为腹痛、腹胀、呕吐呈溢出性、肠鸣音消失。
参考答案:错
根据妇女经、带、胎、产用药,属于()
A.因人制宜
B.因地制宜
C.因时制宜
D.既病防变
E.未病先防
---Ann, I’m worried I’m getting fatter. What shall I do?
---I think you should eat food and do more exercise.
A.more
B.less
C.much
D.little