中国大学MOOC: 电路如图所示,D1和D2管的作用是消除( )。http://edu-image.nosdn.127.net/A95E08F64316D91FCA2F8085C96C24C9.jpg?imageView&thumbnail=890x0&quality=100
举一反三
- 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
- 中国大学MOOC: 如图所示电路中,电阻R=( )Ω。http://edu-image.nosdn.127.net/18402F0B69F33655EB6CAD5C00E66BE5.jpg?imageView&thumbnail=890x0&quality=100
- 逻辑电路如图(a) 所示,若各输入信号波形如图(b) 所示,则Q1、Q2的波形如图(c) 所示,对吗?假设两个触发器的初始状态均为0。http://edu-image.nosdn.127.net/BEBCCC056ABBD6F251A01C1C632863DF.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/5592FA167A8A7D8C93AD633F0E01D161.png?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/C853EF51EFF13D688C5BEDB9CD8C030C.png?imageView&thumbnail=890x0&quality=100
- 中国大学MOOC: 图(a)的诺顿等效图如图(b)所示,则图(b)中 Io= A,Ro= Ω。http://edu-image.nosdn.127.net/4018D75B6550915CDE33EED39E870551.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/6325E7C7A0214BF71330DC72B2EECCDE.png?imageView&thumbnail=890x0&quality=100 (a) (b)
- 如图1、图2所示是创建Payment的两种不同的方案。根据GRASP原则,图2所示方案比较好。主要因为( )。图1 http://edu-image.nosdn.127.net/DF18F3334E87838BC00EE9B9524541E2.png?imageView&thumbnail=890x0&quality=100图2http://edu-image.nosdn.127.net/E8B44B9FE019478D075B56E84B93C2B2.png?imageView&thumbnail=890x0&quality=100