单项选择题
A.is between the scheme and the nearest land
B.contains all the traffic moving in one direction
C.is designated as an anchorage area
D.separates traffic proceeding in one direction from traffic proceeding in the opposite direction
单项选择题 A vessel using a traffic separation scheme shall（）.
单项选择题 In a traffic separation scheme，when joining a traffic lane from the side，a vessel shall do so（）.
单项选择题 Systems of inbound and outbound lanes to promote the safe flow of vessel traffic in certain areas around the world are known as（）.