A.velocity of the current
B.bottom characteristics
C.depth of the water
D.speed over the ground
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A.tree or log awash in a nearly vertical position
B.crew member who refuses to work
C.upstream end of a land wall
D.buoy that is adrift
A.high pressure system
B.low pressure system
C.high dew point
D.low dew point
A.At
B.In
C.During
D.With
A.Gain Control
B.Brilliant Control
C.Anti-clutter Sea Control
D.Sweep Intercept
A.KEYLOCK
B.REPEATER
C.STATIC INVERTER
D.ANTI-CLUTTER-SEA
最新試題
A Doppler log in the bottom return mode indicates the（）.
A barometer showing falling pressure indicates the approach of a（）.
An ECDIS is required to display which information?（）
The number of pulses of energy transmitted per second is call the（）.
Compass error is equal to the（）.
An ECDIS is required to display which information?（）
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
A tall object with a light on or near the shore，to act as a guide or warning to mariners is called（）.
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
（）the canal transit，the radar was operating.