问题
多项选择题
对基站室外安装环境的检查项目主要有:()
A.天线的避雷针、避雷接地点,馈线的避雷接地点
B.室外走线架,天线支撑杆之间的距离,支撑杆的牢固度和抗风性是否符合设计要求
C.站点位置是否处于地势最高的有利位置
D.天馈安装环境是否已与当初的勘测设计环境不同,是否需更改设计
答案
参考答案:A, B, D
对基站室外安装环境的检查项目主要有:()
A.天线的避雷针、避雷接地点,馈线的避雷接地点
B.室外走线架,天线支撑杆之间的距离,支撑杆的牢固度和抗风性是否符合设计要求
C.站点位置是否处于地势最高的有利位置
D.天馈安装环境是否已与当初的勘测设计环境不同,是否需更改设计
参考答案:A, B, D
完形填空。 | ||||
The Spring Festival is our 1___________ people's festival. There are different names for each year. We call it the year 2___________ sheep, the year of dog... and this year is the year of chicken. 3___________ the day of the festival, people are very busy shopping and 4___________ their houses. On the Eve (除夕), there 5___________ a big family dinner. 6___________ dinner, all the family stay up late (守夜) to welcome the new year. At midnight we have some dumplings. We 7___________ many good TV programs. 8___________ the first day of the New Year, people 9___________ their new clothes and go to their friends' houses. They say " Happy New Year " to each other. Children will 10___________ some money from their parents and relatives.
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