某工程通信机房设有防静电架空地板用于缆线的敷设，室内安装有通信设备、网络设备、UPS电源设备及接地装置等，请回答下列问题，并写出解答过程。 机房内通信设备最高频率为2500MHz，等电位联结方式采用SM混合型，设等电位联结网格，网格四周设等电位联结带，对高频信号通信设备接地设计应采用下列哪项措施符合规范要求？（）
A.采用悬浮不接地
B.避免接地导体长度为干扰频率波长的1/4或其奇数倍
C.采用2根相同长度的接地导体就近与等电位联结网格连接
D.采用1根接地导体汇集连接至接地汇流排一点接地
参考答案：B
One young academically excellent person went to apply for a managerial position in a big company. He 36 the first interview; the director did the last interview. The director asked, “Did you obtain any scholarships in school?” The young man answered, “ 37 .” “Who paid the school fees for you?” “My father passed away 38 I was born, so my mother paid them all.” “What did your mother do?” “A laundry woman.” The director 39 the youth to show his hands. They were smooth and perfect. The director asked, “Have you ever 40 your mother wash the clothes?” The youth answered, “ 41 . My mother always wanted me to study and read more books. 42 , she can wash clothes faster than me.” The director said, “Please go and clean your mother’s hands, and then see me tomorrow.” The youth felt his 43 of getting the job high. When he went back, he happily asked his mother to let him clean her hands. His mother felt 44 but happy with mixed feelings. The youth cleaned his mother’s hands 45 . He cried as he did that. It was the first time he had 46 his mother’s wrinkled hands with so many bruises (伤痕) on them. Some bruises were so painful that his mother 47 when they were cleaned. Only by then did he realize it was this pair of hands that assisted him 48 his academic years. After finishing cleaning his mother’s 49 hands, the youth quietly washed all the 50 clothes for his mother. That night, they talked for a very long time. The next morning, the director noticed the youth’s swollen 51 and asked, “Can you tell me what you have done and 52 in your house?” The youth answered, “I cleaned my mother’s hands and also finished washing all the remaining clothes. I know now what 53 is. Without mother, there would not have been my success today.” The director said, “This is what I am looking for 54 a manager. I want to hire a person who can value the help of others and who knows the 55 of others. You are hired.”
|