公式x=h1/(h1+h2)×a是以下()的计算公式。A、坡度B、零点C、施工标高D、设计标高

公式x=h1/(h1+h2)×a是以下()的计算公式。

  • A、坡度
  • B、零点
  • C、施工标高
  • D、设计标高

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