男性,32岁,术后3h突然出现呼吸困难,可能的诊断有
A.喉头水肿
B.双侧喉返神经损伤
C.双侧喉上神经损伤
D.气管塌陷
E.甲亢危象
参考答案:A,B,D
The host family went out of _____ way to make us feel at home. [ ]
A. they
B. them
C. their
D. those
釉质龋中脱矿最严重的区域是哪一层()
A.暗层
B.病损体部
C.脱矿层
D.透明层
E.表层