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【单选题】
为了适应高集成度、高速以及高成率的集成电路生产需求，国内研究单位和生产厂家为满足我国产业界从8μm线过渡到（）线的需求，为此上海光机所在国内最先开始了研制“1：1扫描投影光刻机”。
A.
2μm
B.
3μm
C.
4μm
D.
5μm
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【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
【单选题】CD4028 集成电路是 ______________ 集成电路。
A.
十六进制/十进制译码器集成电路
B.
BCD/ 十进制译码器集成电路
C.
BCD/八进制译码器集成电路
D.
以上都错误！