智慧职教: How many businessmen travel by air?
A lot of.
举一反三
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How many options do you have when you travel by train in Vietnam?
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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?
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智慧职教: The interviewer asked him how many years he had worked.
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智慧职教: <p>How many beds are there in a twin room?</p><p><br/></p>
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How can you reserve air ticket according to the video? A: by ticket office B: by telephone C: by travel agency D: online