guest Moderator 管理成员 注册 2002-10-07 消息 402,597 荣誉分数 76 声望点数 228 2014-01-03 #1 A third of installed smoke detectors aren't fully functional, and even those that are working detect some fires better than others. Here's what you need to know to stay safe. 查看原文...
A third of installed smoke detectors aren't fully functional, and even those that are working detect some fires better than others. Here's what you need to know to stay safe. 查看原文...
