The port in which crew or passengers go on board the ship is called().
A. port of call
B. port of embarkation
C. port of destination
D. port of disembarkatio
未经项目部审核或审核问题未落实的图纸,严禁据以施工。
A. 正确
B. 错误
人工挖孔桩开挖深度超过()时应配置专门向井下送风的设备?
A. 5米
B. 8米
C. 10米
D. 12米