在关系国民经济命脉和国家安全的关键领域,真正的核心技术和关键

在关系国民经济命脉和国家安全的关键领域,真正的核心技术和关键技术只能依靠我们自己,只能依靠自主创新。从经济学角度看,自主创新是(  )

①优化产业结构、推进产业升级的中心环节

②增强企业竞争力的唯一途径

③提高企业经济效益的有效手段

④实现经济发展方式转变的重要途径

A.①③④                 B.①②④

C.②③④                 D.①②③④

 

答案

A

 

自主创新是增强企业竞争力的重要途径,但不是唯一途径,排除含有②的选项,选A。

 

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