【单选题】【单选】A vessel, the passage of which is not to be impeded, _____ to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.
【单选题】A vessel the passage of which is not to be impeded()to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.
【单选题】A vessel, the passage of which is not to be impeded, to comply with thus Rule when the two vessels are approaching one another so as to involve risk of collision.
【单选题】A vessel, the passage of which is not to be impeded, to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.