题目内容：
In statistics, the mathematical mean is obtained by dividing the sum of a group of scores by the number of scores.
参考答案：
答案解析：
单选题：In statistics, the mathematical mean is obtained by dividing
- 题目分类：理工类
- 题目类型：单选题
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（ ）对于 松弛 相当于 态度 对于（ ）
（ ）对于 松弛 相当于 态度 对于（ ）A．精神 坚强 B．纪律 紧密 C．肌肉 松懈 D．学习 敷衍
五花八门：五行阵
五花八门：五行阵A．吉光片羽：神兽 B．哀鸿遍野：灾民 C．晨钟暮鼓：寺院 D．杯弓蛇影：酒杯
捐献：爱心
捐献：爱心A．援助：悲伤 B．炫耀：自得 C．援救：人道 D．勤奋：用功
She always finds fault with everything.
She always finds fault with everything.A．simplifies B．evaluates C．criticizes D．e
A. scientificB. common C. technicalD. average
A. scientificB. common C. technicalD. average