紫菀与款冬花共同功效是（）
A.润肺化痰
B.清肺化痰
C.泻肺平喘
D.化痰止咳
E.止咳平喘
参考答案：D
— Can I pay the bill by check?
— Sorry, sir. But it is the management rules of our hotel that payment _____ be made in cash. [ ]
A. shall
B. may
C. will
D. can
常用一线抗结核药品包括哪些？
