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目前市场上,性价比最佳的宽带网接人方式是HTTB+LAN（光纤到楼+五类线局域网）人户的以太网技术。但是在90％以上的旧楼里,大规模穿墙打洞布五类线,破坏室内
Currently on the market, the most cost-effective way to access broadband is HTTB + LAN (fiber to the floor + five types of LAN) households Ethernet technology. However, in more than 90% of the old buildings, a large number of five types of wall-penetrating holes are used to destroy the interior