牛膝具善下行之性，但此特点不能用于
A．腰膝酸痛
B．口舌生疮
C．气喘咳嗽
D．阴虚阳亢眩晕
E．难产、胞衣不下
参考答案：C
---How about a visit to Hongkong Disneyland?
---___________ I have been looking forward to it for a long time．
A．I agree it.
B．That’s right.
C．I don’t mind.
D．Why not?
园林树木在保护环境方面的作用主要有？
