题目

即将离开母校离开小学的老师和同学们的你，给大家写一封告别的信。请你介绍自己此刻的心情及对大家的期望和思念。 要求：1）不少于5句话；2）字迹工整，书写正确。 答案：Dear teachers and classmates, Weare going to go to middle school. I am very excited but sad. I am excitedbecause I am going to make new friends. And I am going to learn new subjects.But I am also very sad to say goodbye to you. You helped me learn subjects. Iwill miss you all. Let's write letters to each other! We will always befriends. Goodbye!Love,Tina如图，E是矩形ABCD边AD上一点，且BE=ED，P是对角线BD上任一点，PF⊥BE于F，PG⊥AD于G，请你测量一下PF，PG，AB的长，猜想它们之间有什么关系？并说明你的结论是正确的．