下载APP
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】CD4511 集成电路是 _____________ 集成电路。
A.
BCD- 锁存/7段数码显示译码器集成电路
B.
或门逻辑电路
C.
与门逻辑电路
D.
D触发器集成电路