A.incorrect image
B.distinctive image
C.pictorial image
D.pictographic image
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A.with
B.to
C.for
D.of
A.should not be made
B.are not to be taken
C.should be taken
D.shall be made
A.used
B.available
C.in use
D.can be used
A.unwanted interference
B.unexpected figures
C.abnormal data
D.unwanted information
最新試題
Your radar is set on a true motion display.Which of the following will NOT appear to move across the PPI scope（）.
（）typically extends from close as 0.1 nautical miles out to 32 NM.
You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）
Which procedure(s) shall be used to determine risk of collision? （）
When using the radar for navigating（）.
Which condition indicates that your radar needs maintenance?（）
What provides little or no indication that a vessel is dragging anchor? （）
What will cause the ARPA to emit a visual alarm，audible alarm，or both?（）
The（）has a built-in world map; most areas are displayed on a scale of 4000 nm from the top to the bottom of the screen，and can be zoomed in to 150 nm.
Which statement is TRUE concerning a vessel equipped with operational radar?（）.