装卸货之前，打开舱盖。（）<br>A:After loading and discharging, hatch covers will be opened.<br>B:After loading and discharging, hatch covers will be closed.<br>C:Before loading and discharging, hatch covers will be opened.<br>D:Before loading and discharging, hatch covers will be closed.

装卸货之前，打开舱盖。（）
A:After loading and discharging, hatch covers will be opened.
B:After loading and discharging, hatch covers will be closed.
C:Before loading and discharging, hatch covers will be opened.
D:Before loading and discharging, hatch covers will be closed.

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:【10244422】个 (题库试题定时更新)