0.625*0.5+1又2分之1*62.5%=

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0.625*0.5+1又2分之1*62.5%=0.625*0.5+1又2分之1*62.5%=0.625*0.5+1又2分之1*62.5%=0.625*0.5+1又2分之1*62.5%=0.625x(0

0.625*0.5+1又2分之1*62.5%=
0.625*0.5+1又2分之1*62.5%=

0.625*0.5+1又2分之1*62.5%=
0.625*0.5+1又2分之1*62.5%
=0.625x(0.5+1.5)
=0.625x2
=1.25