• 2022-06-07 问题

    There’s a feeling of unrest nowadays. A: in the air B: on the air C: by air D: in air

    There’s a feeling of unrest nowadays. A: in the air B: on the air C: by air D: in air

  • 2022-06-05 问题

    4. From the control tower, air traffic controllers coordinate aircraft movement both ________ and on the ground. A: on the air B: in the air C: at the air D: of the air

    4. From the control tower, air traffic controllers coordinate aircraft movement both ________ and on the ground. A: on the air B: in the air C: at the air D: of the air

  • 2021-04-14 问题

    智慧职教: Compressed air is supplied by air compressors to air receivers.

    智慧职教: Compressed air is supplied by air compressors to air receivers.

  • 2022-06-06 问题

    An air waybill is used for air transport. It is an evidence of a ( ).

    An air waybill is used for air transport. It is an evidence of a ( ).

  • 2022-06-01 问题

    The air leakage of tubular air preheater is larger than that of rotary air preheater (). A: Right B: Wrong

    The air leakage of tubular air preheater is larger than that of rotary air preheater (). A: Right B: Wrong

  • 2022-06-07 问题

    What is the talk mainly about A: The definition of air pollutant. B: The causes of air pollution. C: The dangers of air pollutants. D: Ways to fight air pollution.

    What is the talk mainly about A: The definition of air pollutant. B: The causes of air pollution. C: The dangers of air pollutants. D: Ways to fight air pollution.

  • 2021-04-14 问题

    In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve? A.Noise coming from that air starting valve B.Continuous operation of the starting air compressor C.Zero air pressure in the air starting system D.Overheated starting air pipe to the cylinder head

    In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve? A.Noise coming from that air starting valve B.Continuous operation of the starting air compressor C.Zero air pressure in the air starting system D.Overheated starting air pipe to the cylinder head

  • 2022-06-06 问题

    Whether we go to Paris is ______. A: [A] on the air B: [B] in the airs C: [C] in the air D: [D] with the air

    Whether we go to Paris is ______. A: [A] on the air B: [B] in the airs C: [C] in the air D: [D] with the air

  • 2021-04-14 问题

    智慧职教: 3.S1:Isn't the emergency air compressor started? S2:Yes. But the emergency air compressor can't supply enough starting air to the air receiver for the auxiliary engine. Q:How is the emergency air compressor?

    智慧职教: 3.S1:Isn't the emergency air compressor started? S2:Yes. But the emergency air compressor can't supply enough starting air to the air receiver for the auxiliary engine. Q:How is the emergency air compressor?

  • 2022-06-18 问题

    Where warm air replaces cold air it is called a .

    Where warm air replaces cold air it is called a .

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