摘要:108.影响京九铁路的主要区位因素是 . . . .京九铁路交汇的东西向铁路有 . . .交汇处的城市名称是 . . .有支线相连接城市 . .铁路沿线矿产资源十分丰富.主要有 . 的石油.农产品十分多样.在北方主要是 . . .在南方主要是 . . .青藏铁路沿线经过的河流有 . -.翻越的山脉有 . 等.主要克服的困难有 . . . .修建的意义是 . . . .新长铁路的意义是 .宁启铁路的意义是 .在江苏省修建铁路需要注意和克服的问题是 .

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下图是我国部分地区略图,据图及结合所学知识回答下列问题。
(1)京九铁路位于                 铁路和                铁路两大铁路干线之间。该线与长江的交点是                
    (城市),此城市附近有湖                (名称)。该线与陇海铁路线交点是                  (城市),该
    城市位于                 省(名称)。
(2)京九铁路建设的主要区位因素有:
    ①                                                                                                                                
    ②                                                                                                                                 
    ③                                                                                                                                 
    ④                                                                                                             
(3)图中A和B两地分别建有我国两个大型钢铁企业,影响两地该工业布局的最主要区位因素分别为:
    A____________________________                                                                                                     
    B___________________________                                                                                                       
(4)C城市兴起的最主要区位因素是_______________                                                                          

(5)图中甲、乙两个阴影所在地区商业网点的显著差异是:
    甲                                                                                                                                                     
    乙                                                                                                                                                     
    原因是 __________________________________________________                                                        
                                                                                                                                                                
                                                                                                                                                             

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