水手应该知道船上吊杆的安全工作负荷。（）<br>A:Sailors should know the SWL of cranes on board their ship.<br>B:Sailors should know the SWL of derricks on board their ship.<br>C:Officers should know the SWL of derricks on board their ship.<br>D:Officers should know the SWL of cranes on board their ship.

水手应该知道船上吊杆的安全工作负荷。（）
A:Sailors should know the SWL of cranes on board their ship.
B:Sailors should know the SWL of derricks on board their ship.
C:Officers should know the SWL of derricks on board their ship.
D:Officers should know the SWL of cranes on board their ship.

出自：船舶水手证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10245629】个 (题库试题定时更新)