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【判断题】
超高压架空线路继电保护装置的作用是：在该线路发生故障时，迅速将断路器跳开，将故障点切除，以保证电网的完好部分继续运行。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】下列门电路的输出端可否并联使用? (1)具有推拉式输出级的TTL电路；(2)TTL电路的OC门； (3)TTL电路三态门；(4)普通CMOS门；(5)漏极开路输出的CMOS门； (6)CMOS电路的三态门。
【单选题】Which statement about the inert gas system is TRUE ________．
A.
Boiler soot blowers should never be used when the IG system is operating
B.
The boiler will produce the best quality of flue gas for the IG system when the boiler load is very light
C.
The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very light
D.
Flue gas with excessive oxygen content is de-oxygenated in the scrubber
【简答题】逻辑运算题:当逻辑门电路其输入端有1个或全为1时,输出为0;另一个逻辑门电路其输入端有一个为0,输出为1,它们各为什么门电路?有一个门电路其两个输入端各为1和0时,输出为1,这又是什么门电路?
【单选题】When the soot blowers are operating in the oil fuel boiler, the air/fuel ratio must _____ throughout the action, and blowers greased after use.
A.
be increased
B.
be decreased
C.
remain constant
D.
either be increased or remain constant
【简答题】Wringting a self-introduction using the knowledge you have now. Watch the vocabulary microlecture. a mind map according to the microlecture.
【简答题】与门电路和或门电路具有 个输入端和 个输出端。
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