任何三相电路星形联接时有http://edu-image.nosdn.127.net/6F9CFA26F9989C22C96AC5D6DA6247ED.png?imageView&thumbnail=520x520&quality=100,三角形联接时则http://edu-image.nosdn.127.net/2EC54837967DA37FDF667CB263E2C11D.png?imageView&thumbnail=520x520&quality=100。
举一反三
- 中国大学MOOC: 以下焊点正确的是：http://edu-image.nosdn.127.net/FE29E41E85FF3EA27C8E62C7DC594EBC.jpg?imageView&thumbnail=520x520&quality=100 http://edu-image.nosdn.127.net/457BFAA4B8DB598B694AB8DF8B528CBC.jpg?imageView&thumbnail=520x520&quality=100 http://edu-image.nosdn.127.net/BD6F3F90505DC8D24100786DC47489C1.jpg?imageView&thumbnail=520x520&quality=100 http://edu-image.nosdn.127.net/784C7A05C0173340085676F956E0064D.jpg?imageView&thumbnail=520x520&quality=100 图A 图B 图C 图D
- 中国大学MOOC: 有一同步时序电路，由三个上升沿触发的D 触发器构成，其控制输入http://edu-image.nosdn.127.net/7DEA4A23EEC2A02233C260328C46E6E0.png?imageView&thumbnail=520x520&quality=100，http://edu-image.nosdn.127.net/EB3284C90361524DFE3E403132BB980E.png?imageView&thumbnail=520x520&quality=100，http://edu-image.nosdn.127.net/C2F14E7F354402A2A6863EDE13B3DE71.png?imageView&thumbnail=520x520&quality=100，则该电路可产生循环长度为7 的序列，设起始状态http://edu-image.nosdn.127.net/3582A168AAF01A5340FDF2D446BCCF1F.gif，由http://edu-image.nosdn.127.net/69F7AF77ECE598E445FE3DE4400F451C.gif输出，则此序列为
- <img src="http://edu-image.nosdn.127.net/94BA9A5B35831938F42CE4652A023518.jpg?imageView&thumbnail=520x520&quality=100" />?
- 中国大学MOOC: http://edu-image.nosdn.127.net/3A185331E6505ED64E7FFA4F58A1BFB6.JPG?imageView&thumbnail=520x520&quality=100
- 中国大学MOOC: http://edu-image.nosdn.127.net/876A7745CBB86093D241A546AA42537E.JPG?imageView&thumbnail=520x520&quality=100