单项选择题
Why do some people who open their own resturnt fil They don’t lern enoughbout theWhy do so
me people who open their own resturnt fil They don’t lern enoughbout the competition. B.They don’t reserch how tottrct customers. C.They don’t know wht turnover levels they need.A.They don’t learn enough about the competition.B.They don’t research how to attract customers.C.They don’t know what turnover levels they neeD.