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【简答题】
压阻元件:指在( )材料的基片上用集成电路工艺制成的( ),当它受外力作用时,其阻值由于电阻率P的变化而改变。 压阻式传感器原理为:当压力发生变化时,( )产生应变,使直接扩散在上面的应变电阻产生于( )成正比的变化,再由桥式电路获得相应的电压输出信号。
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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
【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
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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
【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
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