【单选题】What does 'operating with normal business procedures' refer to?
A.
Adopting the western way of doing business.
B.
Ordinary way of doing business without meditation and fasting.
D.
Putting right persons in the right jobs.
【判断题】起升机构通常采用弹性圈柱销联轴器或齿轮联轴器。
【判断题】驻波的平均功率为零,因此不能用来输送电磁能
【多选题】工程建设过程中废水处理的物理方法包括( )。