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Wednesday, September 14, 2022
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Wednesday, September 14, 2022
问题:使用消防灭火器灭火时,人的站立位置应是()方向。...
Wednesday, September 14, 2022
问题:压力的单位是帕(Pa),1Pa表示()。A、1N/m2B、1cal/ m2C、1J/ m2D、1kg/ m2...
Friday, January 27, 2023
Wednesday, September 14, 2022
Wednesday, September 14, 2022
问题:使用SiteMaster在GSM900频段测量一段1/2的馈线的...
Wednesday, September 14, 2022
Saturday, September 17, 2022
问题:两条十字交叉吊线高度相差在()以内时,需做十字吊线。...
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:光缆发生故障抢修应遵循原则,说法正确的是()A、先一干后二干B、先二干后本地网C、先核心层后汇聚层D、先汇聚层后接入层...
Sunday, March 10, 2024
问题:烽火Citrans640设备XCUK1运行正常时,以下对ACT灯...
Sunday, September 11, 2022
Wednesday, September 14, 2022
Wednesday, September 14, 2022
问题:在目前的网络和技术条件下,总体来看,PTN可分为以太网增强技术和...
Wednesday, September 14, 2022
问题:下列()协议是用来发送电子邮件的TCP/IP协议。...
Saturday, September 17, 2022
Sunday, September 11, 2022
Wednesday, September 14, 2022
Saturday, September 17, 2022
问题:在SDH中,STM-1的传输电话路数为()路。A、32256B、2016C、387072D、129024...
Wednesday, September 4, 2024