题目

如图，D，E是边BC上的两点，AD=AE，∠ADB=∠AEC，现要直接用“AAS”定理来证明三角形全等，请你再添加一个条件：                       使△ABD≌△ACE(AAS)。 答案：∠B=∠C    It was a really ________ experience．Afterwards everybody was very ________． [　　] A．terrifying; shocking B．terrified; shocking C．terrifying; shocked D．terrified; shocked