Which of the following engines has no significant effects on energy saving and emission reduction?_____ A: Electronic-controlled injection diesel engine B: Gas turbine C: Gas engine D: Dual fuel engine

This passage is mainly about______ tips A: energy-saving B: fuel-saving C: do-it-yourself D: environment-protecting

The fuel oil system for a diesel engine can be considered in two<br/>parts---- the fuel supply and the ()systems A: fuel purification B: fuel combustion C: fuel treatment D: fuel injection

The fuel oil system in the ship's engine room is not included . A: Fuel purifying system B: Fuel transfer system C: Fuel supply system D: Fuel cooling system

FMV is the short for ( ). A: Fuel Metering Valve B: Fuel Metering Vane C: Fuel Management Valve D: Fuel Metering Value

46.___ A: To standardize daylight saving time. B: To establish year-round daylight saving time. C: To abolish daylight saving time. D: To shorten daylight saving time.

A common trouble with the fuel pump plunger or fuel valve spindle is （）.

Brazil is the world’s second largest producer of ______. A: biofuel B: fossil fuel C: corn fuel D: ethanol fuel

Questions 11-13 are based on the following talk about the history of daylight saving time. According to the speaker, what was the effect of the Uniform Act of 1966 A: To standardize daylight saving time. B: To establish year-round daylight saving time. C: To abolish daylight saving time. D: To shorten daylight saving time.

这个问题来源于燃油系统。 A: The source of the problem is in the fuel system. B: The beginning of the problem is in the fuel system. C: The origin of the problem is in the fuel system. D: The problem originates from the fuel system.