Can Bill ________?[ ]
A. play the chess
B. play the football
C. play the guitar
答案:C
治疗慢性阻塞性肺疾病阳虚水泛证,应选的方剂是()。
A.四逆散合左金丸
B.泻白散合黛蛤散
C.二陈汤合三子养亲汤
D.清金化痰汤
E.真武汤合五苓散
一杠杆,动力臂与阻力臂之比是2:5,则动力与阻力之比是______.