全等三角形的问题`1.AB与DC,AD与BC分别互相平行吗?2.∠A和∠C,∠B和∠D分别相等吗（图的链接：file:///C:/Documents%20and%20Settings/Administrator/Local%20Settings/Temporary%20Internet%20Files/Content.IE5/72L1Q0GH/200907021

　　全等三角形的问题`

　　1.AB与DC,AD与BC分别互相平行吗?

　　2.∠A和∠C,∠B和∠D分别相等吗

　　（图的链接：file:///C:/Documents%20and%20Settings/Administrator/Local%20Settings/Temporary%20Internet%20Files/Content.IE5/72L1Q0GH/20090702135809-1857873916%5B1%5D.jpg）