在梁的正应力公式σ=My/Ix中,Ix为梁截面对何轴的惯性矩?()A、形心轴B、对称轴C、中性轴D、形心主轴

在梁的正应力公式σ=My/Ix中,Ix为梁截面对何轴的惯性矩?()

  • A、形心轴
  • B、对称轴
  • C、中性轴
  • D、形心主轴

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