集装箱是由龙门吊装卸。（）<br>A:Containers are loaded and discharged by gantry cranes.<br>B:Cases are loaded and discharged by gantry cranes.<br>C:Cases are loaded and discharged by heavy derricks.<br>D:Containers are loaded and discharged by heavy derricks.

集装箱是由龙门吊装卸。（）
A:Containers are loaded and discharged by gantry cranes.
B:Cases are loaded and discharged by gantry cranes.
C:Cases are loaded and discharged by heavy derricks.
D:Containers are loaded and discharged by heavy derricks.

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)