桔梗的应付规格是（）
A.南桔梗
B.北桔梗
C.苦桔梗
D.玉桔梗
E.桔梗片
参考答案：E
写出下列反应的离子方程式：
（1）铁跟稀硫酸反应：________________________
（2）碳酸氢钠溶液跟少量石灰水反应：______________________
The spokesman said that this was a(n) ____ negotiation (谈判) because it solved a lot of problems between
the two sides. [ ]
A. attractive
B. defensive
C. protective
D. productive
