点（1，2）关于点（2，3）的对称点的坐标为____ ．

给农作物一次施肥过多   ____  A生物体进行呼吸作用

潮湿的种子堆里发热     ____ B合理密植

移栽花木时根带土坨     ____ C烧苗

栽种农田作物要保持间距 ____ D不能进行光合作用制造有机物

花草长期放在黑暗处死亡  ____E保护幼根，利于成活

    Hello! I'm Linda. I have a good e-friend. Her name is Zhang Yun. Her English name is Betty. She is a Chinese girl, but she lives in the UK with her parents. Her father is a doctor and her mother is a teacher. She is ten years old. She call me big sister. She is good at English. She likes Chinese and I also like Chinese. She likes singing and playing basketball. This is my good e-friend. Do you want to know more?