功能祛风湿、益肝肾、强筋骨、安胎的药是：
A．独活
B．五加皮
C．桑寄生
D．防己
E．川乌
参考答案：C
You look so tired, stop and go to sleep early. [ ]
A. having a rest
B. to have a rest
C. had a rest
D. to had a rest
《卖炭翁》是唐代诗人白居易的著名诗作。卖炭翁之所以“心忧炭贱愿天寒”是因为炭的贵贱（）
A.由天气决定
B.受市场上炭的供求影响
C.由买炭人决定
D.由卖炭翁伐薪烧炭的劳动决定
