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

---It’s ___________.

3, 9, 27, 81,

A. two hundreds and forty-three

B. two hundred and forty-seven

C. two hundred and forty-eight

D. two hundred and forty-three

D

【解析】

试题分析:句意:---出现在81后面的数字应该是多少?---是243.此题考查数词,通过观察规律,后一个数是在前一个数的基础上乘以3得到的,根据句意,故选D。

考点:考查数词。

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