单选题:已知某投资中心的资本周转率为0.5次,销售成本率为60%。成本费用利润率为80%,则其投资利润率为(  )。

题目内容:
已知某投资中心的资本周转率为0.5次,销售成本率为60%。成本费用利润率为80%,则其投资利润率为(  )。 A.32%
B.22.5%
C.24%
D.16%
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