具有清肝明目功效的药是（）
A.羚羊角
B.石决明
C.珍珠母
D.地龙
E.天麻
参考答案：A, B, C
John had to have his car repaired in a garage because it seriously. [ ]
A．damaged
B．was being damaged
C．had damaged
D．had been damaged
混合产品
