单项选择题
Which of the following media types is the MOST durable in harsh environments？（）
A. Disk B. Tape C. Optical D. Flash
单项选择题 WhichofthefollowinginternalstoragedeviceshastheGREATESTstoragecapacityandisWORMmedia？（）
单项选择题 Whichofthefollowingwillallowdevicestobeaddedwithoutturningtheserveroff？（）
单项选择题 Whichofthefollowingexpansionslotsis64-bit？（）
