脑外伤后血管的并发症包括（）。 A.血管痉挛 B.脂肪栓塞 C.外_爱下问搜题

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问题多项选择题

脑外伤后血管的并发症包括（）。

A.血管痉挛

B.脂肪栓塞

C.外伤性动脉瘤

D.外伤性动脉切割和内膜撕裂

E.外伤性动静脉瘘

答案

参考答案：A, B, C, D, E

选择题

—I'm sorry, but there's no smoking room in this section on the train.

—Oh, I _____ that, and I won't smoke again. [ ]

A. don't know

B. won't know

C. didn't know

D. haven't known

操作题

盒子里共放10个球，任意摸2个，一定能摸出2个红球。（在盒子里放球）