Although we had told them not to keep us waiting, they made no _________ to speed up deliveries.

A．trial

B．attempt

C．action

D．progress

患者喘咳，痰多，胸闷，动则加重，腰酸肢冷，汗出心悸，小便频数，苔白腻，脉沉细。宜选方为（）

A.苏子降气汤

B.定喘汤

C.真武汤

D.金匮肾气丸

E.七味都气丸