单选题Which of the following electric motors would be the safest and most reliable to use on the main deck of a vessel in foul weather conditions?（）ASealed motorsBDrip proof motorsCEnclosed motorsDWatertight motors
单选题
Which of the following electric motors would be the safest and most reliable to use on the main deck of a vessel in foul weather conditions?（）
A
Sealed motors
B
Drip proof motors
C
Enclosed motors
D
Watertight motors
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