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【判断题】
各种机构中的往复运动有急回特性。A.
正确
B.
错误
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参考解析：
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举一反三
【单选题】Name the logic gate that is formed by this circuit. ______【图片】
A.
positive logic OR gate
B.
positive logic AND gate
C.
negative logic OR gate
D.
negative logic AND gate
【单选题】Which logic gate is Not gate?
A.
The output of a NOT gate is the opposite of the input.
B.
When all inputs are high(logic 1), the output is high, otherwise the output is low(logic 0).
C.
As long as one of the inputs is high (logic 1), the output is high(logic 1); Only when all inputs are low, the output is low.
D.
If the input is high,the output is also high.
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