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健康 - xywb.jjxw.cnxywb.jjxw.cn/resfile/2019-04-01/A6/wb06b190401c_h.pdf · 果是没有熟好的香蕉,会含有一种叫做单宁酸 的物质,这种物质会和蛋白质结合形成鞣酸蛋
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