一、請寫出聚對苯二甲酸乙二酯（polyethylene terephthalate, PET）的化學結構並說明其具有良好的彈性（flexibility）。（10 分）

問題詳情

一、請寫出聚對苯二甲酸乙二酯（polyethylene terephthalate, PET）的化學結構並說明其具有良好的彈性（flexibility）。（10 分）

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