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  • 科目:英语
  • 题型:单选题
  • 难度:容易
  • 人气:1686

_____ 500g of honey, a single bee would have to make about 10 million trips from the hive to the flower and back again.
A Producing   B To produce   C Being produced    D Having produced

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500gofhoney,asinglebeewouldhav