单项选择题
The last shot of an anchor cable is usually painted（）.
A.white B.international orange C.yellow D.red
单项选择题 Safety shackles are fitted with（）.
单项选择题 Required lifesaving equipment on existing vessels may becontinued in use on the vessel if（）.
单项选择题 Lines passed around the falls to hold the boat while passengers are boarding are（）.
