單項(xiàng)選擇題

A radar display in which North is always at the top of the screen is a(n)（）.

A.unstabilized display
B.stabilized display
C.composition display
D.relative display

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A radar contact will remain stationary on a relative motion radar display only when it is（）.

A.on the same course as your vessel
B.at the same speed as your vessel
C.on the same course and speed as your vessel
D.on a reciprocal course at the same speed as your vessel

單項(xiàng)選擇題

A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.

A.Separated line
B.Divided line
C.Reference line
D.Segregated line