Resonance theory says that benzene can be represented by two contributors . 共振论认为苯能用两个参与体表示。
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We see the symmetry we have attributed to allylic particles on the basis of the resonance theory; the two ends of each of these molecules are equivalent . 我们看到了曾经根据共振论而归因于烯丙基型粒子的对称性，所有这些分子中每个分子的两端都是等性的。
