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【单选题】
欲比较同一团体内2个不同单位的观测值的离散程度,最合适的指标是( )A.
全距
B.
方差
C.
四分位距
D.
差异系数
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举一反三
【单选题】Which of the following statements appears more objective?
A.
We analyzed the experiment and what we found made us realize that the technique is quite complex.
B.
The analysis and findings of the experiment reveal that the technique is quite complex.
C.
Our analysis and findings of the experiment show that the technique is quite complex.
D.
The analysis and findings of our e xperiment suggest that the technique is quite puzzling .
【简答题】编写程序:利用条件表达式 求1个数的绝对值,不可直接使用函数abs()与fabs()函数
【简答题】语音知识（共5小题，每小题1分，满分5分） 1 .th e me A. e lectric B. e xperiment C. f e ver D. b e sides 2. c o mfort A. gl o ve B. c o ttage C. rec o gnize D. o pinion 3. po s ...
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