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如图,在△ABC中,∠C=70º,沿图中虚线截去∠C,则∠1+∠2=() [Failed to download image : http://192.168.0.10:8086/QBM/2018/5...
题目内容:
如图,在△ABC中,∠C=70º,沿图中虚线截去∠C,则∠1+∠2=()
[Failed to download image : http://192.168.0.10:8086/QBM/2018/5/27/1954198565052416/1959413911330816/STEM/03dbfd708a27419b8c238ad56786c13f.png]
A. 360º B. 250º C. 180º D. 140º
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