单选题Whether a ship is sailing before the wind or sailing in the rough sea, we must reduce the fuel injection of the main engine.For the former one, it aims to prevent the main engine being（）, while for the later one, it aims to prevent the main engine being（）.Aoverspeed；overloadBoverload；overspeedCover torque；overspeedDlow mechanical efficiency；overload
单选题
Whether a ship is sailing before the wind or sailing in the rough sea, we must reduce the fuel injection of the main engine.For the former one, it aims to prevent the main engine being（）, while for the later one, it aims to prevent the main engine being（）.
A
overspeed；overload
B
overload；overspeed
C
over torque；overspeed
D
low mechanical efficiency；overload
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