题目内容

营销人员想要使用连乘比法（Chain-Ratio Method）计算咖啡饮料的市场潜量，下列哪项不宜放在评估式中？

A. 饮料占食物支出比率
B. 总人口数
C. 咖啡店家数
D. 个人可支配所得

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