A.shorten the hawser or increase the tug's speed B.lengthen the hawser or reduce the tug's speed C.place your tug in irons D.make a sharp turn
A.captain B.capstan C.capital D.carpenter
A.one and one-half times the length of a dot B.twice the length of a dot C.three times the length of a dot D.four times the length of a dot
A.must B.ought to C.have to D.never
A.identity B.time of origin C.reply D.procedure code
