单项选择题
A.static grounding device
B.quick-disconnect nozzle
C.splash guard
D.vapor recovery system
单项选择题 During storm conditions on a vessel,the mooring tensions should be adjusted so that().
单项选择题 During severe storms when survival becomes a major concern,it may become necessary to relieve high anchor tensions on the windward side of the unit by().
单项选择题 A person suffering from possible broken bones and internal injuries should().