单选题 In just three years, the Net has gone from a playground for the local people to a vast communications and trading center where millions swap information or do deals around the world.
【正确答案】 A
【答案解析】名词辨析。deals交易，买卖；A．business商业，买卖，交易，生意，商行；B．shopping买东西，购物；C．chatting聊天；D．meeting会议，机会，会战；因此选项A为答案。