止嗽散的功用是（）
A.宣肺解表，止咳平喘
B.宣肺利气，疏风止咳
C.宣肺化痰，止嗽定喘
D.疏风清热，止咳化痰
E.宣降肺气，化痰止嗽
参考答案：B
The number of people invited ____________ fifty, but a number of them __________ absent for different reasons.
A．were; was
B．was; was
C．was; were
D．were; were
I spent a ______vacation, so I'm ______ now.[ ]
A. relaxed :relaxing
B. relaxing ; relaxing
C. relaxing ; relaxed
D. relax ; relaxed
