导游员在交待游览注意事项时，应讲明哪些内容？（）
A．浏览路线
B．景区特色
C．浏览时间
D．集合地点
参考答案：A, B, C, D
— Excuse me. You smoke here.
— Sorry, I won't do it again. [ ]
A. are supposed to
B. had better
C. aren't supposed to
D. don't suppose to
开放性气胸的急救首先是（）。
A.充分给氧
B.肋间插管引流
C.开胸探查
D.迅速封闭胸壁伤口
E.气管插管辅助呼吸
