单项选择题
A “loose” tow may cause all of the following EXCEPT（）.
A.loss of maneuverability B.lines to part C.damage to the towing vessel and tow D.a saving in the transit time
单项选择题 A “liner” in riveted construction of a vessel is a(n)（）.
单项选择题 A “full service” Loran-C receiver will provide（）.
单项选择题 A “figure eight” knot is used to（）.
