Three centuries ago, coffee-houses were__________.A、forums for politicians and scientists
B、sources and exchanges of information
C、trading platforms for business people
D、collecting and distributing centers of commodities
【正确答案】：B
【题目解析】：细节判断题。题干问三个世纪前的咖啡馆是什么样的地方。第一段开篇问如果想know the latest business news, follow commodity prices, keep up with political gossip, find out what others think of a new book, or stay abreast of the latest scientific and technological developments该去哪里？在三个世纪前，答案就是咖啡馆。可见咖啡馆是交换信息的地方。这一句中出现的know、follow、find out、stay abreast of（了解…的最新情况）等几个动词或动词短语都和了解信息有关，符合选项B中提到的exchange information的意思，故而正确答案为B。