It _____ hard outside. You have to stay at home. [ ]
A. rain
B. is raining
C. rained
答案:B
反义词跷跷板。
旧( ) 丑( ) 暗( )
闲( ) 瘦( ) 矮( )
药品销售()
A.实行明码标价
B.由经营者自主定价
C.制定最高零售价
D.实行市场调节价
E.实行政府定价