以下哪条肌肉不起自于眶尖总腱环（）
A．上直肌
B．下斜肌
C．内直肌
D．下直肌
E．外直肌
参考答案：B
It was said that no one was ever bored _______ him perform; his subtle acting made everything _______.
A．watching; entertaining
B．to watch; to entertain
C．watching; entertained
D．to watch; entertaining
对于掉电的处理，8086/8088是通过( )来完成的。
A．软件中断
B．可屏蔽中断
C．非屏蔽中断
D．DMA
