74161计数器处于保持状态,其使能端(第7脚,第9管脚)应如何处理?http://edu-image.nosdn.127.net/1ABE5223C3DF18CA0CAD11D896B90014.png?imageView&thumbnail=890x0&quality=100
举一反三
- 74LS161计数器要正常计数,其使能端(第7脚,第9管脚)应如何处理?http://edu-image.nosdn.127.net/ABD4B6F6CBC5B974425CBB1BFD233642.png?imageView&thumbnail=890x0&quality=100
- 74LS161计数器要正常计数,其使能端(第7脚,第9管脚)应如何处理?[img=176x164]180333d24b158ea.png[/img] A: 两个管脚都接地 B: 两个管脚都接高电平 C: 第7管脚接地,第9脚接+5V D: 第9管脚接地,第7脚接+5V.
- 中国大学MOOC: 若第9题中当电路中总电压http://edu-image.nosdn.127.net/45D53DF610EBF196EBE5238589C91ABF.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/8232D55E2C1346F746EFBB0780167F51.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/A2CC3366BF7376F66D8EFFEB40B97149.png?imageView&thumbnail=890x0&quality=100,以下叙述正确的是
- 模糊集合是对普通集合的扩展,它将m=0或m =1的取值范围扩大到在[0, 1]整个闭区间上的___________,记作http://edu-image.nosdn.127.net/F4402B02F728258093E85069D9E2430C.png?imageView&thumbnail=890x0&quality=100,称为隶属函数。http://edu-image.nosdn.127.net/15CD63239CEAE16D1B07D6567F552946.png?imageView&thumbnail=890x0&quality=100的大小反映了元素x对于模糊集合http://edu-image.nosdn.127.net/03F3F3DBF73AC889513956FEFFEE7FAD.png?imageView&thumbnail=890x0&quality=100的___________。
- 中国大学MOOC: http://edu-image.nosdn.127.net/9E38D3D1CB4AEF623700A261068518CE.png?imageView&thumbnail=890x0&quality=100分别为系统的两个能控状态,http://edu-image.nosdn.127.net/58C1046B13D13FAB6FD3280F6B0C306C.png?imageView&thumbnail=890x0&quality=100为不同时为零的任意常数,则状态http://edu-image.nosdn.127.net/AF791396EE6A32EE7ADE5A028361E572.png?imageView&thumbnail=890x0&quality=100( )