A.state of wind，sea，and current，and the proximity of navigational hazards
B.maximum attainable speed of your vessel
C.temperature
D.aids to navigation that are available
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A.radio communications that are available
B.maximum speed of your vessel
C.temperature
D.current
A.risk of collision exists
B.the other vessel will cross ahead of her
C.the other vessel is not taking appropriate action
D.collision cannot be avoided by the give-way vessel's maneuver alone
A.did not appreciably change
B.does not appreciably change
C.do not appreciably change
D.not appreciably change
A.past
B.clear
C.past or clear
D.past and clear
A.in a crossing situation
B.in a meeting situation
C.when they are the overtaking vessel
D.on the inland waters of the PR China
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You see a vessel carrying a black diamond which indicates a（）.
Which display indicates a vessel conducting mineclearance operations（）.
When underway in a channel，you should keep to the（）.
Underway at night，a vessel displaying the lights shown is（）.
Your vessel is NOT making way，but is not in any way disabled.Another vessel is approaching you on your starboard beam.Which statement is TRUE（）.
You are under sail and overtaking a tug and tow.Which action is correct（）.
When visibility is restricted（），we can say it is restricted visibility.
When one of two vessels（）is required to keep out of the way the other must keep her course and speed.
You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.
Vessels should maintain a sharp lookout，especially during December through March，when navigating the right whale’s only known calving grounds which lie off the coasts of（）.