单项选择题
Which criteria for businesses that can effectively use RM below is wrong？（）
A.Their variable costs are much more than fixed costs. B.Their demand can be segmented into classes. C.There can be substantial fluctuations in the demand. D.They have a relatively fixed total capacity.
单项选择题 高档豪华的西餐厅适合以下哪种服务？（）
单项选择题 以下哪项不属于用工数量的控制？（）
单项选择题 以下哪项是正确的餐饮产品成本控制流程？（）
