题目

One windy spring day, I noticed young people having fun using the wind to fly their kites. Colorful creations of different shapes and sizes filled the skies like beautiful birds flying and dancing. As the strong winds blew against the kites, a string kept them in control. They shook and pulled, but the restraining (控制的) string and the cumbersome (笨重的) tail kept them in control, facing upward and against the wind. As the kites struggled against the string, they seemed to say, “Let me go! Let me go! I want to be free!” They rose beautifully even when they fought the restri如下图，已知∠B=62°，∠3=30°，∠4=88°.AB与CD平行吗？AD与BC平行吗？