47A3的知识精选

如图1­1­47,已知P,Q分别在BC和AC上,=,=,则=(  )图1­1­47A.3∶14        ...
问题详情:如图1­1­47,已知P,Q分别在BC和AC上,=,=,则=()图1­1­47A.3∶14                           B.14∶3C.17∶3                           D.17∶14【回答】B...
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