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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1400

_____ he is very busy, he spends at least two hours every day surfing the Internet in order to find out the latest development in science and technology.

A.Even though B.When C.Unless D.Whether
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heisverybusy,hespendsatleasttw