PA-1181-10A/180w,PA-5181-3 /550w,PA-2251-2AB/250w,PA-2301-3 图文详情 本店推荐 海康威视录像机电源7932N 7916N-16P FSP350-20GSV DPS-300AB-81B ¥168.0 HP电源DPS-460DB-2A 10A 466610-001服务器SPI460PFB2 DPS-460CB ¥128.0 HP电源D16-250P2A D19-180P1A PA-3401-1HA PA-5501-2...
Working For Acer Veriton E450 D650 D850 X4660G 6Pin 180W PSU PA-1181-10AC PA-1181-10AB FSP250-20TGPAA PA-2251-2AB FSP180-10TGBAA Note: Please check the confirmation picture and part number before purchasing. If you have any questions, please feel free to contact us and ...
(2)根据正四面体的几何特征,可得连接PA和BC的中点E,F所得直线EF与AB,PC都垂直且相交. 解答解:(1)如图所示: ∵PA=PB=PC=AB=BC=CA, 故空间四边形P-ABC是一个正四面体, 则PA与BC异面,PB与AC异面,PC与AB异面; (2)连接PA和BC的中点E,F,