单项选择题
A.Continue on the same course and speed B.Alter your course to the right C.Slow to 8.5 knots D.Alter your course to the left
A.less and have less strength B.more and have less strength C.more and have greater strength D.less and have greater strength
A.number of fishhooks B.kink in the line C.50% loss of efficiency of the line D.increase in deterioration of the line