行气管切开时，切口不宜低于第5气管软骨环，否则易（）。
A.伤及气管后壁
B.引起喉狭窄
C.损伤食管
D.损伤无名动脉
E.损伤甲状腺下动脉
参考答案：D
1. We won't know whether it will be successful. We won't know whether there will be good _____.
A. ends B. results C. effects D. causes
2. He's the kind of man who is fond of _____ compliments to other men's wives.
A. paying B. saying C. expressing D. showing
甲状腺功能亢进症最常见于
A．碘甲亢B．甲状腺炎伴甲亢C．Graves病D．多结节性甲状腺肿伴甲亢
