第6题: [单项选择]In order to talk to several people at the same time on the Internet,______. A. you have to speak fast and fluently B. you should speak with wit and humor C. one should pay much attention to the use of exact words D. you have to express your ideas in a brief way 参考答案:D 答案解析:[解析] 根据文章第三段可以得出正确答案为D。