Although some of you may consider this practice excessive, food suppliers and manufacturers adhere to the policy of tracing their products because bacteria such as E. coli and Salmonella have been found in packaged foods. In addition, there have been isolated cases where dangerous allergens such as peanuts have accidentally been introduced into certain products.
unit record techniques—keypunch, sorting bins, mechanical totalizers—to present，推荐阅读Line官方版本下载获取更多信息
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I found this article on the subject, and decided to turn that data into a visualization, too.，这一点在heLLoword翻译官方下载中也有详细论述