下图中S与SC表之间的关系是( ) [*]
A.一对一 B.一对多 C.多对多 D.不确定
参考答案:B
The man _____ himself last night, because he was in heavy debts.[ ]
A. hanged
B. hung
C. was hung
D. was hanging
鉴别声带麻痹与环杓关节固定可用()
A.间接喉镜检查
B.纤维喉镜检查
C.电子喉镜检查
D.直接喉镜检查
E.动态喉镜检查