单项选择题
The Vessel’s cargo holds are properly fitted with（）in way of hatches.
A.Floor-ceiling B.Battens C.Covers D.Hard-wood boards
单项选择题 The strake on each side of the keel is called a（）.
单项选择题 The section of each end of a barge which is heavily reinforced to take the pressure of pushing is called the（）.
单项选择题 The riding pawl is（）.
