单项选择题
A.when the power source is replaced B.each year after installation C.every six months D.when it is no longer serviceable
The lifesaving equipment on all vessels shall be（）.A.in...
单项选择题The lifesaving equipment on all vessels shall be（）.
A.inspected weekly B.stowed in locked compartments C.readily accessible D.tested yearly
The life jackets on all vessels shall be（）.A.inspected ...
单项选择题The life jackets on all vessels shall be（）.
A.inspected weekly B.worn at all times C.readily available D.tested yearly
The last shot of an anchor cable is usually painted（）.A...
单项选择题The last shot of an anchor cable is usually painted（）.
A.white B.international orange C.yellow D.red
