题型:选择题 如图,△ABC中,∠C=Rt∠,AC=BC,AD是∠BAC的平分线,DE⊥AB,垂足为E,若AB=10cm,则△DBE的周长等于[ ]A.10cmB.8cmC.12cmD.9cm 查看答案
题型:选择题 —Why not _____ music club?—I'm sorry. I can't sing or dance. [ ]A. to join B. joinC. joining D. to join in 查看答案