单项选择题
（）provides strength and strong space for fule,lubricating oil,fresh water,salt(ballast)water and potable water.
A.The double bottom B.The cofferdam C.The navigating bridge D.The superstructure
单项选择题 The formost and aftermost spaces of the vessel are the（）.
单项选择题 Access to a hold can be obtained throuth（）.
单项选择题 The（）is the intermediate deck between upper deck and the inside bottom of the vessel.
