单项选择题
A.As voltage increases， resistance decreases B.As amperage decreases， resistance decreases C.As resistance decreases， amperage increases D.As resistance increases， voltage increases
Whenconfiguringsurroundsoundsystems，speakerdelayisusedt...
单项选择题When configuring surround sound systems， speaker delay is used to compensate for speaker（）.
A.distance B.power C.size D.efficiency
WhichofthefollowingBESTdescribesCAT5e？（）A.Contains four...
单项选择题Which of the following BEST describes CAT5e？（）
A.Contains four pair of wires of various gauge B.Contains two wires in a red fireproof jacket C.Contains four twisted pairs of wires D.Contains eight wires within a thick jacket with a rip cord
RG-6coaxialcableistypicallyusedinallofthefollowingappli...
单项选择题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， digital cable， and satellite applications.
