题目

如图，在矩形ABCD中(AD＞AB)，点E是BC上一点，且DE＝DA，AF⊥DE，垂足为点E．在下列结论中，不一定正确的是(    ) A．△AFD≌△DCE    B．AF＝AD    C．AB＝AF    D．BE＝AD－DF 答案：B---It’s said that scientists have ________ a way to deal with the disease(疾病) ---Really? That’s great! A. caught up with B. come up with C. agreed with　 D. compared with