Which of the following technologies was designed to provide the FASTEST data rates over analog phone lines？（）
A. RADSL
B. SONET
C. ADSL
D. MPLS
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AfterperformingtheinitialstepsininstallingtheserverOSfromaDVD-ROM，theserverreboots andgoesbackintothesetupwizard.WhichofthefollowingistheMOSTlikelycauseforthis problem？（）
A. TheDVD-ROMdrivehasfailed.
B. AninstallationfilecopiedfromtheDVDtotheharddriveiscorrupt.
C. FaultyOSinstallationDVD
D. IncorrectbootsequenceintheBIOS
给惠国在其普惠制方案中规定的保护措施一般包括（)。
A. 非互惠条款
B. 竞争需要标准
C. 预定限额
D. 免责条款
E. 毕业条款
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