关系国民经济命脉的行业包括哪些？                                                                

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关系国民经济命脉的行业包括哪些？
                                                                                                                                                               
                                                                                                                                                               
                                                                                                                                                               
                                                                                                                                                               

答案

A、涉及国家安全的行业如国防工业、造币工业、航空航天工业等。B、支柱产业和高新技术产业中的重要骨干企业如机械工业、电子工业、汽车工业、石油化工、建筑业等。C、提供重要公共产品的行业如大江大河的治理、重点防护林工程、重点公益事业等。D、自然垄断的行业如油田、天然气、大型煤矿等。