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ji cha fang cha yu biao zhun cha jian ce ti
Author(s): 
Pages: 53
Year: Issue:  6
Journal: School Journal of Mathematics

Abstract: 一、精心选一选  1.一组数据-1,0,3,5.x的极差是7.那么x的值可能有( ).  A.1个 B.2个  C.4个 D.6个  2.在体育课上,九年级两名学生各练习10次立定跳远,要判断哪名学生的成绩比较稳定,通常需要比较这两名学生立定跳远成绩的( ).……
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