单项选择题
In order to reduce your wake in a narrow channel you should（）.
A.apply enough rudder to counter the effect of the current B.change your course to a zigzag course C.reduce your speed D.shift the weight to the stern
单项选择题 In most cases，when a large merchant vessel enters shallow water at high speed the（）.
单项选择题 If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.
单项选择题 If a tow sinks in shallow water，you should（）.
