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單項(xiàng)選擇題

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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單項(xiàng)選擇題

The direction a vessel is pointed at any given time is the（）.

A.course
B.track
C.heading
D.course over the ground

單項(xiàng)選擇題

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

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