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【简答题】
[A]earth [B]grass [C]water [D]ice
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举一反三
【判断题】Computers are constructed of digital building blocks such as logic gates, Flip-flops and counters.
A.
正确
B.
错误
【单选题】In digital logic families, there are four popular categories, TTL,ECL,MOS,CMOS. Which one of them has become the dominant logic family?
A.
ECL
B.
TTL
C.
NMOS
D.
CMOS
【判断题】The three basic types of digital logic gates are the AND gate, the OR gate and teh NOT gate.
A.
正确
B.
错误
【判断题】The three basic types of digital logic gates are the AND gate, the OR gate, and the NOT gate.
A.
正确
B.
错误
【简答题】When you connect a logic yzer to a digital circuit, you’re only concerned with the logic state of the signal.
【简答题】number system 、 logical gate 、 digital logic circuit 。
【单选题】Which device is faster and has low threshold voltage andoften be used in digital logic circuits?
A.
LED
B.
Schottky Diode
C.
Photo diode
D.
Zener Diode
【判断题】Computers are constructed of digital building blocks such as logic gates, Flip-Flops and counters.
A.
正确
B.
错误
【单选题】A logic gateis an elementary building block of a digital circuit. Using combinations of logic gates, complex operations can be performed.
A.
构件（积木）
B.
复杂操作
C.
组合
D.
逻辑门
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