绿茶中含有egcg表示没食子儿茶素没食子酸酯物质具有抗癌作用已知egcg的一种衍生物a如图所示.有关衍生物a说法不正确的是 A.a在 Template




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tomski绿茶中含有egcg表示没食子儿茶素没食子酸酯物质具有抗癌作用已知egcg的一种衍生物a如图所示.有关衍生物a说法不正确的是 a.a在 coloring