一组数据12,15,24,25,31,31,36,36,37,39,44,49,

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问题选择题

一组数据12,15,24,25,31,31,36,36,37,39,44,49,50的中位数是（）

A 36 B 31 C 35 D 34

答案

答案：A

这组数据总共有13个数，则其中位数为第7个数36，故选A

填空题

根据句意和空缺处所给首字母写单词。

1. Zhang Ziyi is my f_________ movie star.

2. Your hair is long, but mine is s__________.

3. Please g______ this letter to Tom. It's his.

4. We are in the same school, but in d__________ grades.

5. Li Zixuan is my c___________. We are in the same class.

选择题

我国人口最多的少数民族与其聚居的省区轮廓正确的是

A．A

B．B

C．C

D．D