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ji cha fang cha yu biao zhun cha jian ce ti
Author(s): TANG Yaoting
Pages: 53
Year: 2009
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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