如题所述
201x0.47-0.47
= 201* 0.47 - 1*0.47
= 0.47*(201-1)
= 94
= 201* 0.47 - 1*0.47
= 0.47*(201-1)
= 94
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第1个回答 2010-12-19
201x0.47-0.47
=0.47*(201-1)
=0.47*200
=94
=0.47*(201-1)
=0.47*200
=94