單項選擇題（）is electricity that is flowing where it’s not supposed to through water, fittings on your boat, wet wood, damp surfaces, etc.
A.Stray current
B.Rated current
C.Starting current
D.Earth current
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1.單項選擇題During steering gear test should be moved through its full travel in both directions（）
A.pump
B.the cylinder
C.the hunting gear
D.the rudder
2.單項選擇題The（） of the telemotor is mounted on the steering gear.
A.transmitter
B.receiver
C.pipes
D.charging unit
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