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1994
1
1992
×
1992
1993
人气:320 ℃ 时间:2020-04-09 08:22:46
解答
1994
1
1992
×
1992
1993

=
1994×1992+1
1992
×
1992
1993

=
1994×1992+1
1993

=
(1993+1)×1992+1
1993

=
1993×1992+1992+1
1993

=
1993×1992+1993
1993

=1992+1
=1993
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