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一(yī )种(zhǒng )物(wù )质(zhì )帮(bāng )助(zhù )其(qí )他(tā )物(wù )质(zhì )燃(rán )烧(shāo )。如(rú )氧(yǎng )就(jiù )能(néng )助(zhù )燃(rán )。

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