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如图,\(\angle ABC = 40^\circ \),\(BD\)平分\(\angle ABC\),过\(D\)作\(DE//AB\)交\(BC\)于点\(E\),若点\(F\)在\(AB\)上,且满足\(DF = DE\),则\(\angle DFB\)的度数为___。
参考答案:\(40^\circ \)或\(140^\circ \)
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