Mathematics

4th

grade

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BA4 lesson3 Paralle&Perpendicular

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23 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    ray
    线段
    激光
    发射
    射线
  • 2. Multiple Choice
    30 seconds
    1 pt
    segment
    讨论
    线段
    直线
    角度
  • 3. Multiple Choice
    30 seconds
    1 pt
    protractor
    保护
    游行
    量角器
    追踪
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