按国标GY/T106-99的要求，分支、分配器的相互隔离度在邻频传输时应达到（）dB 发布时间：2017-05-27 07:46 │ 来源：www.tikuol.com 题型：单项选择题 问题： 按国标GY/T106-99的要求，分支、分配器的相互隔离度在邻频传输时应达到（）dB以上。A、40B、30C、20D、25
题型：单项选择题 从方框中选择单词，带入短文空格内，使短文意思正确、通顺，再将其适当形式填到相应的横线上。（每词限用一次）。 stop when face way put answer wrong around drive pencil Mr. Williams, who was always a very careful driver, was driving home from work one evening when he came to a crossroad. It had a "Slow" sign, so he slowed down 1______ he came to the main road, looked to both 2______ to see that nothing was coming, and then drove across without 3______ completely. At once he heard a police whistle (口哨声), so he 4______ his car to the side of the road and stopped. A policeman walked over to him with a notebook and 5______ in his hand and said, "You didn't stop at the crossing." "But the sign there doesn't say 'Stop'," 6______ Mr. Williams. "It just says 'Slow', and I did go slow." The policeman looked 7______ him, and a look of surprise came over his 8______. Then he 9______ his notebook and pencil away, scratched (搔) his head and said, "Well, sorry! I am in the 10______ street!" 查看答案
题型：单项选择题 微博作为“个人信息即时共享综合平台”正在深刻地改变中国社会，无论是经济生活、政治生活、文化生活，还是日常生活，微博的影响力无处不在。据此回答下列问题。小题1:日前，全国各地网友发动了系列“微博传递正能量”的活动，“每天一条正能量”、“随手转发正能量”，得到大量网民的响应。这说明①大众传媒是文化传播的重要途径 ②反映社会阴暗面的文化是糟粕③文化对人有潜移默化的影响 ④精神文明能促进社会发展A．①②③B．①②④C．①③④D．②③④小题2:微博传播的便捷与高效，也让一些人用来散播谣言、流言，危害网络环境。对此认识正确的观点是①分辨事物的性质要看主要矛盾 ②一分为二地看问题③要抓主流，也不能忽视支流 ④具体问题具体分析A．①②③B．②③④C．①②④D．①③④ 查看答案