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数学
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1996+1995-1994-1993+1992..
人气：157 ℃ 时间：2020-04-05 00:34:26
解答
到几 到一 （1996-1994）+（1995-1993）+(1992-1990)+...+(4-2)+(3-1)
2x998 =1996
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怎么解释
已知N=1992×1993×1994+1993×1994×1995+1994×1995×1996+1995×1996×1997，则N的末位数字是 _．
1/1992*1993+1/1993*1994+1/1994*1995+1/1995*1996+1/1996=?
1997+1996-1995-1994+1993+1992…-2+1=_．
1998+1997+1996+1995+1994+1993+1992+1991=
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