单项选择题
The direction in which a vessel is steered is the course. The path actually followed is the （）.
A.route
B.track
C.heading
D.course over the ground
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相关考题
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单项选择题
The direction a vessel is pointed at any given time is the（）.
A.course
B.track
C.heading
D.course over the ground -
单项选择题
The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to（）.
A.a difference in water pressure
B.the method of breaking up the water stream
C.the length of the applicator
D.All of the above -
单项选择题
The dew point is reached when the（）.
A.temperature of the air equals the temperature of the seawater
B.atmospheric pressure is 14.7 lbs. per square inch
C.relative humidity reaches 50%
D.air becomes saturated with water vapor
