• 2022-06-15
    ‌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.
  • B

    内容

    • 0

      ‍Among the following numbers, which one is seen as a yang number in the classic I-Ching?‍ A: 2 B: 4 C: 5 D: 6

    • 1

      Applicants were few in __________(number numbers).

    • 2

      If the sum of a set of ten different positive prime numbers is an even number, which of the following prime numbers CANNOT be in the set ?() A: 2 B: 3 C: 5 D: 7 E: 11

    • 3

      Jim was late for two classes this morning. He said that he forgot both of the _______. A: rooms number B: room number C: room's numbers D: room numbers

    • 4

      According to recording 4.1, which statement is true? ( )。 A: Number four and number five. B: Number one and number two. C: Number three and number four. D: Number one and number four.