单项选择题 A vessel navigate in areas near the termination of traffic separation schemes shall do（）with particular caution.

单项选择题 A vessel not using a traffic separation scheme shall avoid it by as wide a（）as is practicable.

单项选择题 A vessel restricted in her ability to maneuver when engaged in an operation for the maintenance of safety of navigation in a traffic separation scheme is（）complying with this rule to the extent necessary to carry out the operation.