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
单项选择题 WhichofthefollowingBESTdescribesCAT5e？（）
单项选择题 RG-6coaxialcableistypicallyusedinallofthefollowingapplications：（）
单项选择题 Whichofthefollowingcommunicationmethodswillprovidethemaximumbandwidthforvideostreamingthroughamediaextender？（）
