A、A.buoy
B、B.mark
C、C.beacon
D、D.channel
更多“Keep to the middle of the（）(航道) ！”相关的问题
A、stay near the middle of the channel B、keep to the starboard side of any vessels you meet C、exchange whistle signals with any other vessels in the channel D、keep to the side of the channel which lies to your starboard
A、Middle of the channel B、Starboard side of the channel C、Port side of the channel D、Side of the channel that has the widest turns
A、middle of the channel B、starboard side of the channel C、port side of the channel D、side of the channel that has the widest turns
A、be placed in the middle of a small circle formed by the other survivors in the water B、float on their backs with their arms extended for maximum exposure to the air C、remove their life preservers and hold on to the uninjured survivors D、sip seawater at intervals of fifteen minutes
A、avoid crossing the channel if it impedes another vessel navigating in the channel B、not overtake any vessels within the channel C、keep as close as possible to the edge of the channel on her port side D、anchor only in the middle of the channel
A、When a vessel is alongside the wharf, it’s necessary for the ship to keep a 24-hour deck watch to guarantee the safety of the ship and the cargo. B、When a vessel is alongside the wharf, t’s necessary for the ship to keep a 24-hour gangway watch to guarantee the safety of the ship and the cargo. C、When a vessel is alongside the port, it’s necessary for the ship to keep a 24-hour deck watch to guarantee the safety of the ship and the cargo. D、When a vessel is alongside the port, it’s necessary for the ship to keep a 24-hour gangway watch to guarantee the safety of the ship and the cargo.
A、To add power to the engine B、To keep the engine firmly attached to its supporting base C、To keep moving engine part in their proper relative positions D、To rotate the crankshaft
A、to keep clear of the breakwater B、that there is much berth space near the breakwater C、don't drop anchor too close to the breakwater D、to keep the breakwater within sight
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