术毕拔管时最应注意的问题（）
A.喉上神经麻痹
B.喉痉挛，气管痉挛
C.呕吐误吸
D.拔管时的循环反应
E.气管软化塌陷
参考答案：E
Jane was disappointed that most of the guests
when she at the party.
A．left; had arrived
B．left; arrived
C．had left; had arrived
D．had left; arrived
9，4，7，-4，5，4，3，-4，1，4，（），（）。
A.0，4
B.1，4
C.-1，-4
D.-1，4
