治疗慢性呼衰为保证呼吸道通畅下列哪种是错误的：（）
A.必嗽平
B.选用博利康尼
C.氨茶碱
D.超声雾化吸入
E.心得安
参考答案：E
下列动物类群中，学习行为较复杂的是 [ ]
A．鱼类
B．两栖类
C．爬行类
D．哺乳类
Smoking is not allowed in public places since May 1st. It may be a good chance for some
people to ______ smoking. [ ]
A. put up
B. give up
C. pick up
D. look up
