读 “世界大洲和大陆分布图”，完成下列要求                                                                                                                                                                                                                                                                                                                                                                                                

七大洲为： A              B              C        
D              E              F 南极洲    G         
四大洋为：①                  ②           ③                ④ 北冰洋