读图,回答问题。 |
(1)图示区域内居民点分布有何特点?其形成的原因是什么? _________________________________________________________________________________________ _________________________________________________________________________________________ (2)图示区域内有众多的干涸河道和古河道遗迹,其形成的原因是什么? _________________________________________________________________________________________ _________________________________________________________________________________________ (3)图示区域的主导工业部门是什么?制约图示地区发展经济的因素有哪些? _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ |