题目

--- What pleasant weather! Shall we go boating on the lake? --- _______. A. That’s right                                     B. Thank you very much C. It doesn’t matter                              D. Sounds great 答案：D如图，⊙O是△ABC内切圆，切点为D、E、F，∠A=100°，∠C=30°，则∠DFE度数是（?????? ）A.55°??????? B.60°?????? C.65°?????? D.70°