读“上海市规划示意图”,回答下列问题:
(1)自来水厂的取水口移至黄浦江上游C处的原因是?
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(2)B是宝山钢铁集团公司,其区位选择的主导因素是?
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(3)D是金山石化总厂,它远离市区布局的原因是?
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(4)①处布局有污染工业区的合理性是?
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