用于消毒皮肤的氯己定液浓度为（）
A.0.1%
B.0.5%
C.1%
D.2%
E.3%
参考答案：B
- Could you please help me do the laundry this afternoon?
- _____. I will be free after 2:30 in the afternoon.[ ]
A. Sorry, I can't
B. No, you can't
C. Sure, I'd love to
D. Yes, I could
具有祛风湿、利关节、降压、解毒功效的药物是（）
A.独活
B.豨莶草
C.络石藤
D.五加皮
E.桑寄生
