题目内容

---What number should appear next after eighty one?392781?

---It's ________.


  1. A.
    two hundred and forty-nine
  2. B.
    two hundred and forty-seven
  3. C.
    two hundred and forty-eight
  4. D.
    two hundred and forty-three
D
此题比较新颖,它既考查了英语数词知识又考查了数学知识,要求考生找出所给数字的规律.通过观察这几个数字,不难找出它们的规律,即后面数字是前面数字的三倍,因此,81后的数字是243.
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