题目内容
The success of the hospitality industry depends on the excellent management.
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Translate the following sentence into Chinese.The success of the hospitality industry depends on the people-pleasers. With good training and plenty of practical experience everybody can master the techniques of being nice to guests. A dissatisfied guest means a loss of potential future business for the hotel, while a pleased guest leaves the hotel with a good memory of hospitality he has enjoyed and he is likely to repeat his visit to the hotel.
下列哪个药物的水溶液与三氯化铁显蓝紫色，其酸性水溶液加热后具有重氮化耦合反应：
对乙酰氨基酚的主要水解产物是：
边际人力成本（MFC）
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