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A comparison of the NFS throughput for the default read-ahead heuristic and a hard-wired `` always do read-ahead '' heuristic . A new microwave oven , with its sensor combination , blends the benefits of microwave and convection cooking . For the EECS system , although each week varies from the others , and none of the weeks appear `` average '' , this week is no more atypical than any other . " Thumbs up " can be used to indicate agreement and " thumbs down " can be used to suggest that the participant disagrees with the group 's assessment of the case .