单选题：某工程水泥从两个地方供货，甲地供货200t，原价为240元／t；乙地供货300t，原价为250元/t。甲、乙运杂费分别为

题目分类：建设工程计价
题目类型：单选题
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题目内容：

某工程水泥从两个地方供货，甲地供货200t，原价为240元／t；乙地供货300t，原价为250元/t。甲、乙运杂费分别为20元/t、25元/t，运输损耗率均为2％，采购及保管费率均为3％，则该工程水泥的材料基价为（　　）元／t。 A．281．04
B．282．45
C．282．61
D．287．89

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