甲状腺术后出现呼吸困难和窒息,可见于以下因素()
A.双侧喉上神经损伤
B.血肿压迫气管
C.喉头水肿
D.气管塌陷
E.双侧喉返神经损伤
参考答案:B, C, D, E
Liu Xiang came third ______ the 110-meter-hurdle race last month in Shanghai. [ ]
A. in
B. from
C. across
D. through
A.I= ,从上向下
B.I= ,从上向下
C.I= ,从下向上
D.I= ,从下向上