A、A.in
B、B.by
C、C.on
D、D.with
更多“Vessels must navigate（）caution in this area.”相关的问题
A、all vessels must carry an after range light B、vessels less than 50 meters in length need not carry an after range light C、vessels stopped dead in the water should turn off their range lights D、vessels over 20 meters in length must carry both range lights from sunset to sunrise
A、all vessels must carry an after range light B、vessels less than 50 meters in length need not carry an after range light C、vessels stopped dead in the water should turn off their range lights D、vessels over 20 meters in length must carry both range lights from sunset to sunrise
A、is ready to use but vessels must stand clear B、is ready to use and vessels may approach C、cannot be made ready immediately and vessels shall stand clear D、cannot be made ready immediately but vessels may approach
A、A conditional or partial exemption may be granted，in exceptional circumstances，for a single voyage outside the sea area for which the vessel is equipped B、Once a compulsory vessel's GMDSS station has been fitted and inspected，the station must be inspected only once every five years C、All passenger vessels and all cargo vessels that are 300 Gross Tons or larger must comply D、Compulsory vessels must carry at least two licensed GMDSS Radio Operators
A、are not required aboard vessels on runs of less than 30 minutes duration B、must be Coast Guard approved and stowed in a portable，watertight container C、must be marked with an expiration date not more than 42 months from the date of manufacture D、All of the above
A、you must visually signal oncoming vessels B、you must immediately tie up in the nearest port until the radiotelephone is repaired C、you must anchor until the radiotelephone is repaired D、the loss of the radiotelephone must be considered in navigating the vessel
A、You must visually signal oncoming vessels B、You must immediately tie up in the nearest port until the radiotelephone is repaired C、You must anchor until the radiotelephone is repaired D、The loss of the radiotelephone must be considered in navigating the vessel
A、You must keep your course and speed B、You may change course and speed as the other vessel must keep clear C、The other vessel must keep her course and speed D、Both vessels must keep their course and speed
A、must utilize magnatic courses B、must take set and drift into account C、should be replotted hourly D、should be started each time the vessels position is fixed
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