单项选择题
A.A cable clamp B.A fishplate，flounder，or towing plate C.A pad eye D.The towing bitts
As it approaches，a typical warm front will bring（）.A.ri...
单项选择题As it approaches，a typical warm front will bring（）.
A.rising temperatures and falling barometric pressure B.falling temperature and pressure C.falling temperatures and rising pressure D.rising barometric pressure and temperatures
As defined in the regulations governing marine casualti...
单项选择题As defined in the regulations governing marine casualties a “marine employer” may be the（）.
A.owner B.agent C.Master D.All of the above
As compared to carbon dioxide，dry chemical has which ad...
单项选择题As compared to carbon dioxide，dry chemical has which advantage?（）
A.Cleaner B.Effective on metal fires C.Greater range D.More cooling effect
