单选题RG-6 coaxial cable is typically used in all of the following applications：（）A
multi-room audio， telephone， intercom and temperature control.B
thermostat， CCTV， smoke detectors and keypads.C
home theater， lighting control and multi-room audio.D
video， d
题目内容(请给出正确答案)
单选题
RG-6 coaxial cable is typically used in all of the following applications：（）
A
multi-room audio， telephone， intercom and temperature control.
B
thermostat， CCTV， smoke detectors and keypads.
C
home theater， lighting control and multi-room audio.
