下列( )操作前应该进行开中断。
A．保护现场前
B．恢复现场前
C．执行中断服务程序
D．以上都应该
参考答案：C
The news spread all over the world _______that Kim Jong Il, top leader of the Democratic People's Republic of Korea (DPRK), passed away last Saturday at the age of 69.
A．consistently
B．instantly
C．previously
D．curiously
短促最大负荷练习的肌力训练方法是
A．等张练习
B．等长练习
C．等速练习
D．等张练习与等长练习联合应用
E．等张练习和等速练习联合应用
