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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较难
  • 浏览 1179

So far a total of 19 cases______ and another 36 people are being treated on the assumption that they are infected with Legionnaires Disease.

A.were confirmed B.have confirmed C.are confirmed D.have been confirmed
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Sofaratotalof19casesandanother