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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1783

The study surveyed 500 families and found that the main ________ problem people suffered was tiredness, followed by loneliness and anxiety.

A.domestic B.public
C.psychological D.biological
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Thestudysurveyed500familiesand