单项选择题
If obliged to cross traffic lanes，a vessel shall do so on a heading as nearly as practicable （）to the general direction of traffic flow.
A.at small angle B.at large angle C.at right angle D.in same direction as
单项选择题 The rule regarding look-outs applies（）.
单项选择题 The VTS has been designed to aid in（）.
单项选择题 Traffic separation schemes may be（）by the Organization for the purpose of these Rules.
