Hotel ratings are often used to classify hotels according to their quality. There is a same rating scheme used by different organizations around the world.

2021-04-14

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44. Chinese yuan is the most widely used currency for savings around the<br/>world.
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What did young people use to do after graduation from college? A: They used to enjoy life. B: They used to travel around the world. C: They used to find a job and build a family. D: They used to further study.
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Market segmentation is not to classify products, but to classify customer groups with different needs for the same product.
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Speakers of different languages are capable of distinguishing and recognizing experiences of the same objective world according to their respective different linguistic coding system.（）
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The image of acceleration can not be used by (). A: the certain points on the same link B: the points on the same link C: the points on the different links