第6题

[br][br]6.(4分)如图,正五边形[i]ABCDE[/i]内接于⊙[i]O[/i],连接[i]OC[/i],[i]OD[/i],则∠[i]BAE[/i]﹣∠[i]COD[/i]=(  )[br][br]A.60°                            B.54°                              C.48°                            D.36°[br][br]

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