CAN通信检查,在主程序界面上观察CAN通信指示灯为()色。
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属于CTC采集机柜的设备有交换机,自律机,路由器,防火墙等。
A. 正确
B. 错误
井底车场是连接主、副井和大巷或石门的一组巷道和硐室的总称。
A. 正确
B. 错误
煤矿企业必须加强职业危害的防治与管理,做好作业场所的职业卫生和()。
A. 劳动保护工作
B. 防疫
C. 卫生
D. 防寒防冻
During loading or discharging,where the delay is due to the Shipowner’s fault,or that of his servants or agents acting within their authority,the time actually delayed is to be()in calculating lay days.
A. precluded
B. included
C. excluded
D. diluted