A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have().
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
根据《中华人民共和国海船船员适任考试发证规则》的规定,在中国籍海船上任职的船长、甲板部高级船员金额值班水手应当持有与其所服务的()和所担任的植物相符的有效适任证书。
①船舶航区;
②船舶种类;
③主机功率;
④船舶吨位。
免费的网站请分享给朋友吧