Nowadays, people’s lifestyles are changing, which has resulted in the demand for fast foods. ______ is a very common way that m

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问题 Nowadays, people’s lifestyles are changing, which has resulted in the demand for fast foods.
______ is a very common way that makes the food become contaminated with bacteria.

选项

答案Cross contamination

解析 参见文章第三段倒数第二句:A common way that food can become contaminated,is through cross contamination.
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