Some grocery chains, including Whole foods Market and Trader Joe's, refuse to sell foods with artificial coloring.
一些食品连锁店,包括全食食品公司和Trader Joes,拒绝出售含人工色素的食品。
In a new study, a team of researchers has developed an artificial stock market that, for the first time, can reproduce these main properties.
在一项新的研究中,一个研究小组建立了一个人造的股票市场,它第一次复现出了这些主要特性。
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