某市有A、B、C、D四个大型超市，分别位于一条东西走向的平安大路两侧，如图，若C（﹣2，8）、D（0，0），请建立适当的直角坐标系，并写出A、B两个超市相应的坐标．

    I really love football. I' m a member (成员) of our school football team (队) and I play four times a week. I also like swimming and I go swimming after school. I don't like basketball.

                                                                        Jack

    My favourite sport is basketball. I also like table tennis, but I don't play it at school. I go to a club (俱乐部) with my friends. I' m not very good at football.

                                                                        Anna

    Bicycle riding (骑自行车) is my fav0urite sport. I go to school by bicycle. I also like travelling (旅游) by bicycle and I-do it with my father. It's very interesting. I don't like football or" basketball.

                                                                     David

    I like football. It's really interesting. My two brothers are in our school football team and they help me. I don't like playing it with my friends.
                                                                    John.

奥运场上马拉松运动员要跑42千米多的路程，非常考验运动员的体力和意志．马拉松长跑项目来源于（　　）