成年人术前禁食禁饮导致的水分丧失量大约为()
A.1~2ml/kg
B.3~5ml/kg
C.6~7ml/kg
D.8~10ml/kg
E.11~13ml/kg
参考答案:D
单项选择.
Yao Ming did a good job in the basketball match yesterday. He is my favorite ______.
使用反循环打捞蓝时,下钻距井底()m开泵循环10m1n,将筒内泥沙冲洗干净。
A、3
B、1
C、2
D、4