单项选择题
A.loud， bass intensive music （e.g. heavy metal， rock）. B.providing a sub-woofer for great bass reproduction. C.background music and blending in with decor. D.the user who wants perfect sound reproduction.
WhichofthefollowingisthecorrectwiringorderforanRJ-11two...
单项选择题Which of the following is the correct wiring order for an RJ-11 two line jack？（）
A.Black，Green，Red，Yellow B.Black，Red，Green，Yellow C.Red，Black，Green，Yellow D.Yellow，Red，Green，Black
Whichofthefollowingdeterminesifthealarmshouldsoundorane...
单项选择题Which of the following determines if the alarm should sound or an entry delay should start？（）
A.The sensor itself B.The way the zones are wired C.The zone type D.The digital dialer
WhichofthefollowingisaRFpeertopeermeshprotocolusedforli...
单项选择题Which of the following is a RF peer to peer mesh protocol used for lighting and other residential electronics？（）
A.Z-Wave B.X10 C.CEBus D.Wi-Fi
