应急指挥平台系统摄像机串口的设置()同实际连接的串口一致,否则不能控制摄像机。
A.必须
B.可以
C.不可以
D.均可以
参考答案:A
--- How did you pay these worker Well, as a rule they were paid _____.
A.on the hour
B.by the hour
C.to the hour
D.with the hour
板材常用的连接方式有()。
A、咬接
B、粘接
C、焊接
D、铆接