无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

Which signal and noise values will result in the best phone communication with an access point?()

A. signal strength 46dBm, noise level 95dBm
B. signal strength 74dBm, noise level 94dBm
C. signal strength 68dBm, noise level 79dBm
D. signal strength 50dBm, noise level 56dBm

微信掃碼免費(fèi)搜題