日本丰田公司本身只有制造引擎和车体等核心部件的10个工厂,其余

日本丰田公司本身只有制造引擎和车体等核心部件的10个工厂,其余零部件由分布于全球的1240多个协作厂提供;而我国第三次工业普查结果显示,属于我国支柱产业的机电企业,其产品外购零配件不足一半。这表明,我国企业要提高自身核心竞争力必须:(    )

①提高产业集中度,加强企业专业化协作

②优化进出口结构,依靠国外核心技术

③实施多元化战略,通过企业兼并实现规模扩张

④加强自主创新,掌握核心、关键技术

A.①②      B.①④      C.②③      D.③④

 

答案

B

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