98.49-65.82+72.51-12.12 怎么简便计算
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98.49-65.82+72.51-12.12 怎么简便计算
98.49-65.82+72.51-12.12 怎么简便计算
98.49-65.82+72.51-12.12 怎么简便计算
98.49-65.82+72.51-12.12 =98.49+72.51-12.12 -65.82=98+72+0.49+0.51-﹙12.12 +65.82﹚
=171-﹙12+65+0.12+0.82﹚=171-﹙77+0.94﹚=94-0.94=93.06
=(98.49+75.51)-(65.82+12.12)
=174-77.94
=96.06
98.49-65.82+72.51-12.12
=(98.49+72.51)-(65.82+12.12)
=171-77.94
=96.06
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98.49-65.82+72.51-12.12 怎么简便计算
有硅矿石,含硅98.49%,铝0.47%,铁0.23%,硼0.083%,钙 0.034,这样的硅石用途是什么,去什么行业销售?
急求!哪位高手能帮忙用eviews算个数据啊这是数据: GDP FDI合同金额 3764.54 43.14 4072.85 50.07 4467.55 69.44 4983.67 72.51 5763.35 75.43 6568.93 59.57 7584.36 78.29 9249.13 94.49 就是算算这两的关系(r和f
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