A．控制介质
B．数控装置
C．伺服系统
D．机床本体

A．睡觉时多梦易醒
B．做事没力气，易疲劳
C．饮食多但体重减轻
D．口渴，饮水多
E．皮肤易生疥感染

A．He thanks Big Foot for his protection from the American soldier
B．He keeps the secret of Big Foot
C．He sympathizes with him after seeing his defeat in boxing
D．He saves Big Foot from the attack of a dog