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为了解四川省成都市旅店业从业人员的卫生知识掌握情况，及卫生防疫机构对从业人员卫生知识的培训效果，我们对成都市部分旅店业进行了调查。将成都市范围内旅店业（包括宾馆、饭店、招待所、旅馆）按经营规模分为大、中、小３类。各类旅店业随机抽取１０家，每家随机抽取１０?
In order to understand the hygiene knowledge of the hotel industry workers in Chengdu, Sichuan, and the effect of health and anti-epidemic agencies on the training of health knowledge among employees, we investigated some hotel industries in Chengdu. The Chengdu hotel industry (including hotels, restaurants, hostels, hotels) is divided into large, medium and small categories according to the scale of operations. All kinds of hotel industry randomly selected 10, each randomly selected 10?