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Scattering of photons off electrons in the primordial universe generated magnetic fields strong enough to seed magnetic fields seen in galaxies and galaxy clusters today. Scattering of photons off electrons中的photons是否是scatter逻辑主语,光量子散射电子在物理上没听说过。strong enough是否修饰fields.有没有这样的句子成分:n+adj(中间没有is等助词)即主谓结构。
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