单项选择题
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
A.Straight line
B.Arc
C.Parabola
D.Hyperbola
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相关考题
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单项选择题
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
A.relative display
B.composite display
C.stabilized display
D.unstabilized display -
单项选择题
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 -
单项选择题
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
