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The kinds of hand and wrist injuries that result from extended use of a computer while maintaining an incorrect posture are common among schoolchildren in Harnville. Computers are important to the school curriculum there, so instead of reducing the amount their students use computers, teachers plan to bring about a sharp reduction in the number of these injuries by carefully monitoring their students' posture when using computers in the classroom.

Which of the following would it be most useful to know in order to assess the likelihood that the teachers' plan will be successful?

【选项】What proportion of schoolchildren in Harnville with hand and wrist injuries use computers extensively outside the classroom

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题目基本信息

  • 所属科目:逻辑CR
  • 题目来源1:OG18-643
  • 题目来源2:OG19-643
  • 题目来源3:OG20-734
  • 题目来源4:OG2022-791
难度: 难