混合料水、碳的不稳定是引起料层透气性波动的主要因素。（)
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WhichofthefollowingitemsinasingleenclosurePower770improvesReliability,Availability,and Serviceability？（）
A. Redundantsystemclocks
B. Redundantserviceprocessors
C. eDRAMchipshaveredundantL3cache
D. MainmemoryDIMMscontainaredundantDRAMchip
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