单项选择题
Under the Vessel Bridge-to-Bridge Radiotelephone Act，failure of a vessel’s radiotelephone equipment（）.
A.constitutes a violation of the Act B.obligates the operator to moor or anchor the vessel immediately C.requires immediate，emergency repairs D.does not，in itself，constitute a violation of the Act
单项选择题 The two factors which make underwater hull repair difficult are accessibility and the（）.
单项选择题 The required fireman’s outfits required for ship’s are not to be used for any other purpose EXCEPT for the（）.
单项选择题 The radio technician will come aboard（）the repairs.
