• 2021-04-14
    The seat number of your flight is usually a combination of letters and numbers.
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    内容

    • 0

      Which informaiton is NOT on the boarding cards? A: Seat number B: Flight number C: Departure time D: Ticket price

    • 1

      Numbers include cardinal numbers and ordinal numbers.

    • 2

      ‌Which of the following descriptions of gray numbers is correct?‏ A: A grey number is a kind of uncertain number which exact value and the range are unknown. B: A grey number is a kind of uncertain number which exact value is unknown but the range of the number is known. C: The value range of the gray number can only be an interval. D: Black and white numbers are not gray numbers.

    • 3

      The important information is on the ( ): airline, flight number, date, seat number, boarding time, gate number, etc. A: tag B: baggage C: boarding pass D: ID card

    • 4

      The E-ticket itinerary includes the following information: ________ A: carrier B: departure and destination city C: flight number D: seat class