合法的广告对提高消费者药品知识水平，指导合理用药起到了积极作用。
Legal advertisements facilitate customers' life, but in China overrunned illegal pharmaceutical advertisements misadvises the customers, especially the patients.
前言：目的：了解北京市海淀区10大类食品的污染情况，为指导市民合理消费提供依据。
Objictive: to understand 10 pollution circumstance of the big foods in Haidian District of Beijing so as to guide people how to choose food.
前言：目的：了解北京市海淀区10大类食品的污染情况，为指导市民合理消费提供依据。
Objictive: to understand 10 pollution circumstance of the big foods in Haidian District of Beijing so as to guide people how to choose food.
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