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In 1958, Dr. Jack Kilby of Texas instruments company invented the first integrated circuit, including 12 devices on Ge. ( )

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The first CPU was Intel's 4004 microprocessor in 1971. ( )

Based on the external environment has a significant influence on the conductivity of the semiconductor, various devices including ( ) can be applied.

A. thermocouple
B. photoresistance
C. pressure sensor
D. gas sensor
E. hall sensor

Moore’s law: the level of integration and memory capacity of integrated circuits doubles every ( ) months on average.

A. 6
B. 12
C. 18
D. 24

( )discovered the first semiconductor material, silver sulfide

A. Michael Faraday (法拉第)
Braun(布劳恩)
C. Pickard(皮卡德)
D. Pierce(皮尔斯)