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  • 比较“加氟可能防止蛀牙”和“加入的氟硅酸hydrofluorosilicic acid属有毒物”,我选择不加氟。你哪? (水城百事)

by Vote No to Fluoridation, Monday, October 25, 2010, 16:49 @ 想知道你们为什么反对

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