第2题: [单项选择]非对称数字用户线(ADSL)采用的多路复用技术是______。 A. FDM B. WI)M C. TDM D. CDM 参考答案:A 答案解析:[分析] 频分多路复用将信号划分成若干个通道,每个通道互补重叠,独立进行数据传递。ADSL采用频分多路复用方法,在PSTN使用的双绞线上划分出3个频段即0~4kHz用来传送传统的语音信号;20~50k
第21题: [单项选择]信息化指数方法从信息量、信息装备率、信息主体水平和信息系数四个方面来反映社会信息化程度,其中信息主体水平包含两个指标,即第三产业就业人口数和( )。 A. 人均年使用函件数 B. 话机普及率 C. 每百人在校大学生人数 D. 个人消费中杂费所占比重 参考答案:C 答案解析:[解析] 本题考查的是信息化指数指标体系的具体内容,信息主体水平包括第三产业就业人口数和每百人在校大学生人数两个二级指标。
A. Having a positive sell-view. B. Trying to feel happy. C. Attempting to relax oneself. D. Forming a picture of the treatment. 参考答案:B 答案解析:这种新的疗法要求患者有一种积极的心态,在治疗过程中放松,并想象治疗的过程,但没有说患者感到快乐会有助于治疗,因此正确答案为B。
第34题: [单项选择]What is the probable relationship between the two speakers A. Teachers like Professor Janson are rare. B. Professor Janson has won a million dollars. C. Professor Janson is likely to be teaching at that school. D. There are many teachers as good as Professor Janson. 参考答案:A 答案解析:[听力原文] W: This school is lucky to have a teacher as good as Prof. Helen Johnson. M: She is one