How does electricity come into the flat?

How does electricity come into the flat? 1、Define electronegativity.2、How does it differ from electron affinity?3、How do electricity values of atoms relate to bond polarity? How to Use Electricity Safely英语作文 Electricity Why shoudn't we cook at home without a parent?1.How does electricity cause fires?2.Which is more dangerous to animals,forest fires or house fires?Why?3.How do the firefights fight fires?What do they use? What does electricity look like?的同义句是什么? 帮忙写英语作文 80字左右题目是“How does electricity get go our flat”(家里的点是怎样来的）更正：是家里的电是怎么来的 how does it taste? how does it taste How does Lily like? how does it feel how does she do how does Sarah feel how does earthquake happen How does he work how does sb how does aduck grow? how does he look?