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  • 科目:数学
  • 题型:选择题
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If the ratio of the degree of exterior angle of ∠A,∠B and ∠C
that are in the triangle ABC is 5:4:3,then the ratio of the degree
of ∠A,∠B and ∠C is (   )
A、5:4:3      B、3:4:5      C、1:2:3      D3:2:1

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Iftheratioofthedegreeofexterio