患者,男,60岁。腹胀大如鼓,按之如囊裹水,有波动感。应首先考虑的是
A.水饮
B.痞满
C.积聚
D.水臌
E.内痈
参考答案:D
The thieves ran away as fast as possible at the ___ of the policemen.
A.scenery
B.sight
C.view
D.scene
分批加药好处有()
A、可以维持沿浮选作业线的药剂浓度
B、有利于改善精矿质量。
C、降低药剂消耗
D、增加药剂消耗