试题与答案

物理变化是______的变化,化学变化是______的变化,又叫______.

题型:填空题

题目:

物理变化是______的变化,化学变化是______的变化,又叫______.

答案:

没有新物质生成的变化叫做化学变化,有新物质生成的变化叫做化学变化,化学变化又叫做化学反应.

故答案为:没有生成其他物质(或者没有生成新物质)的变化;生成其他物质(或者生成新物质)的变化;化学反应.

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题型:问答题 案例分析题

阅读材料,回答下列问题。

改革开放以来,我国高度重视科技创新在经济社会发展中的作用。

材料二:我国某汽车企业坚持走自主创新之路,已经完全掌握了发动机、变速箱、底盘三大核心部件的生产和制造技术,创建了具有世界先进水平的两大发动机品牌,截至2009年9月,该企业累计申请专利4003件。获得授权专利2412件,在国内汽车行业中遥遥领先。该企业先后通过ISO9001、ISO/TS16949等国际质量体系认证。2009年该企业销售达50万辆,连续9年蝉联中国自主品牌汽车销量冠军,连续7年成为中国最大的乘用车出口企业。10多年来,该企业已经让100多万消费者实现了轿车梦。

 

结合材料二和所学经济知识,分析自主创新对该企业发展的作用。假设你是企业经营者,你该采取哪些措施来增强企业的自主创新能力?

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