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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 852

The Sanlu Milk Powder event is a clear indication that food safety is a big problem; nobody can __   _ all foods are secure to us, but we are sure that the situation is turning for the better.

A.acknowledge B.guarantee C.identity D.clarify
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TheSanluMilkPowdereventisaclea