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科技苑【20140507】看点介绍
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科技苑20140507集剧情：第20140507期
这些蔬菜的颜色为何如此特别?它们为什么会呈现出鲜艳的紫色?rnrn 采访刘正雄：“核心成分就是花青素。”rnrn 花青素究竟是怎样的一种物质?它对我们的身体又有什么好处?rnrn 紫色蔬菜大聚会，带你走进一个神奇的紫色世界。
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