[单选题]Attention is called to the fact that in many cases pipelines are not ______ and charted depths may be decreased by up to 2 meters．
[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]The mariner must be the final judge of the reliance he can place on the information given in the Admiralty charts and other publications，since they ______.
[单选题]The amount and accuracy of the information provided on charts of different scales ________ considerably.
[单选题]Each member shall require the posting of a table with the shipboard emergency arrangements in _______ .