题目内容

Which component is an active device?

A. resistor
B. capacitor
C. transistor
D. inductor

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Which one belongs to the ternary compound semiconductor?

A. silicon
B. phosphorus
C. gallium phosphide
D. aluminum indium arsenide

Which one is conductor in the following materials?

A. silicon
B. quartz
C. glass
D. copper

At room temperature, the barrier potential of silicon is ________.

A. 0.7V
B. 0.3V
C. 0.5V
D. 1V

Oxygen is first in abundance of the Earth’s crust.

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