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请用序号12345标出CMOS 集成电路简化制造工序的先后顺序。 形成场氧化层和栅极氧化层( ) 产生接触孔、淀积并成型金属层( ) 淀积并成型多晶硅层( ) 产生n阱区和沟道停止区( ) 注入源区、漏区和衬底接触区( )
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【单选题】A new era is upon us. Call it what you will: the service economy, the information age, the knowledge society. It is all translated to a fundamental change in the way we work. Already we've partly been...
A.
the service industry is relying more and more on the female work force
B.
manufacturing industries are steadily increasing
C.
people find it harder to earn a living by working in factories
D.
most of the job opportunities can now be found in service industry