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【单选题】
某建设项目建安工程费8000 万元,设备购置费4000 万元,工程建设其他费用3000 万元,已知基本预备费5%。项目建设前期1 年,建设期3 年,各年投资计划额为:第一年完成投资30%,第二年50%,第三年20%,年均投资价格上涨率为6%,则建设项目第一年涨价预备费为( )万元。A.
270
B.
283.5
C.
410.85
D.
431.57
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