如图，在四边形ABCD中，∠DAB的平分线与∠ABC的平分线相交于E．∠C+∠D=220°，求∠E的度数．

_____the scientists have done lots of research on Mars, there is still much waiting to be discovered.      

阅读下列短文，从每小题的三个选项中选出最佳选项。

    Hello, my name's Kitty. I have a big family. My grandparents are old. They are thin.

    David is my father. He is fat. He is a policeman(警察). This is my mother. Her name is May. She's tall and thin. She is a nurse. John is my uncle. He has a pair of glasses. He is a doctor. He can help people. Sue is my aunt. She has big eyes. She likes kids. She is a teacher. I have one cousin. His name is Peter. John and Sue are his parents.