以B2C模式的电子商务为例，说明一个电子商务平台的构成，并描述一个网络购物的

京东商城，B2C模式很简单，就是自己手头有货源，或是在第一时间能取到货源！商品信息挂到网上后，消费者购买，商城联系物流或自有物流送货上门！
盈利模式，通过广告点击率、商品进销差价、厂家返点！
不过目前来说，京东还是不赚钱的，广告投入太多了~

英语作文,关于网上购物不愉快的抱怨信

Shopping on the Internet ,is being more and more popular.More and more people are using the internet to buy something .Some people say that it is more convenient.They can just stay at home and shop for anything that they want at any time,day or night. If you want to buy something on the internet,you need a credit card.You have to type you credit card number and information on the web site and send it to the store over internet.‍But you can
not see the goods to enjoy with friends and shopping.