She points out that blockchain-based tracking of a food at each point in the supply chain might be feasible for a product like South American bananas, but isn't feasible for a lasagne containing 50 ingredients from all over the world.
面对这种大面积的溃败，业界总是习惯性地陷入“错误归因”。
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Экс-посол Британии жестко высказался об агрессии США против Ирана08:51
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Chang et al., 2019