notE:lAst wEEk no morE thAn two CAshiErs workED At Any onE timE,no CAshiEr workED morE thAn 12hours on thE sAmE DAy,AnD on EACh DAy EACh CAshiEr workED Continuously. 问题18—20参照上述信息: 表头题目:上周市场x中的出纳员的总工作小时数及其每小时的工资。 注:上周任何时候工作的出纳员的人数都不会超过2人,每个出纳员同一天工作都不超过12小时,且每天出纳员的工作都是持续不断的。 iF mArkEt x is opEn 96 hours pEr wEEk,For how mAny hours lAst wEEk wErE two CAshiErs working At thE sAmE timE A、49 B、48 C、36 D、24 E、12