患者身常汗出,夜卧尤甚,久而不止心悸惊惕,短气烦倦。治疗应首选()
A.牡蛎散
B.归脾汤
C.补中益气汤
D.四物汤
E.黄土汤
参考答案:A
I don’t know how much ______[ ]
A.did the bag cost
B.the bag cost
C.the bag costed
D.the bag costs
客户端的受电电压愈高,相应的供电成本就愈高,售电单价就高;相反,供电电压愈低,相应的供电成本就愈低,售电单价就低。