急性心肌梗死后冠脉再通(再灌注)的最佳时间为起病后
A.1h内
B.3h内
C.6h内
D.12h内
E.24h内
参考答案:C
Before you leave the classroom, please the lights.
A.turn up
B.turn down
C.turn on
D.turn off
4,4,2,-2,( )
A.0
B.-8
C.-4
D.1