单项选择题
A wedge of water building up between the bow and nearer bank which forces the bow out and away describes（）.
A.bank cushion B.bank suction C.combined effect D.bend effect
单项选择题 A vessel must proceed at a safe speed（）.
单项选择题 A vessel is proceeding from a very cold climate to a warm climate.With a cargo of non-hygroscopic nature，which of the following is correct?（）.
单项选择题 A tug would NOT assist a ship to steer if the tug is made up to the large vessel（）.
