【单选题】thought Maria should go back to the Von Trapp family.
【单选题】The boy's parents thought their son should be excused mainly because ______.
A.
teachers should be compassionate
C.
instructors were wiser
【判断题】加工中心是可以完成一个工件所有加工工序的数控机床。
【多选题】远程的监控和控制也可以实现( )的自动化。
【多选题】远程的监控和控制也可以实现( )的自动化。