第27题: [单项选择]Until recently, such ______ was limited to telephone questions and answers much like daytime talk shows. A. interspersion B. interactivity C. interference D. intermission 参考答案:B 答案解析:[注释]此题不但要从语句的结构上考虑,还要看其语义关系。因句内存在“交互作用”的含义,需要选择[B]为最佳答案。