急性心肌梗死早期(24小时内)死亡的主要原因是()
A.心律失常
B.急性左心衰竭
C.心源性休克
D.心脏破裂
E.缺血再灌注损伤
参考答案:A
The old man needs at most five hours' sleep a night, but he _______ for over seven hours tonight. [ ]
A. has gone to bed
B. has slept
C. has gone to sleep
D. has fallen asleep
所谓计算机高级语言是指()。
A.最新开发的语言
B.功能最强的语言
C.人最容易理解的语言
D.机器最容易理解的语言