名词解释题differential centrifugation （差速离心）
名词解释题
differential centrifugation （差速离心）
参考解析
解析：
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相关考题：
在SQL Server 2000中，要对数据库GoodsDB进行一次差异备份，将其备份到设备Backup 1上(该设备已建立好)，并要求该次备份操作清除Backupl中己有的备份内容。下列能实现该备份要求的语句是A．BACKUP DATABASE GoodsDB TO Backupl DIFFERENTIAL,WITH NOINITB．BACKUP DATABASE GoodsDB TO Backupl WITH DIFFERENTIAL,NOINITC．BACKUP DATABASE GoodsDB TO Backupl DIFFERENTIAL,WITHINITD．BACKUP DATABA息E GoodsDB TO Backupl WITH DIFFERENTIAL,INIT
Which of the following SCSI signaling systems uses one return line for every outgoing line， is less susceptible to interference， signal degradation， crosstalk， and allows a cable length of up to 25 meters？（）A、 SE （Single Ended）B、 DE （Double Ended）C、 LVD （Low Voltage Differential）D、 HVD （High Voltage Differential）
Which of the following BEST describes the difference between differential and incremental backups？（）A、 An incremental backup requires fewer tapes for restoration than a differential backup. B、 A differential backup tape takes less time than an incremental backup tape.C、 A differential backup requires fewer tapes for restoration than an incremental backup.D、 An incremental backup tape costs less than a differential backup tape.
You have a computer that runs Windows XP Professional. Normal backups are scheduled to run every Sunday at 22:00 Eastern Time. Differential backups are scheduled to run every Monday through Saturday at 22:00 Eastern Time. The computer fails on Thursday at 9:00 Eastern Time. You need to restore the computer from the backup by using the most recent data available. You must achieve this goal by using the minimum amount of administrative effort. You reinstall Windows XP Professional on the computer. What should you do next?（） A、Restore Wednesday’s differential backup. B、Restore Sunday’s normal backup. Restore Wednesday’s differential backup. C、Restore Sunday’s normal backup. Restore Monday’s differential backup. Restore Tuesday’s differential backup. Restore Wednesday’s differential backup. D、Restore Sunday’s normal backup. Restore Wednesday’s differential backup. Restore Tuesday’s differential backup. Restore Monday’s differential backup.
单选题Which of the following BEST describes the difference between differential and incremental backups？（）A An incremental backup requires fewer tapes for restoration than a differential backup. B A differential backup tape takes less time than an incremental backup tape.C A differential backup requires fewer tapes for restoration than an incremental backup.D An incremental backup tape costs less than a differential backup tape.
单选题Starting air valves are held firmly on their seats by（）Acam rollers on the camshaftBspring forceCair pressure on top of the valve differential pistonDair pressure on the bottom of the valve differential piston
单选题Which condition indicates the air side fouling of an after-cooler on a turbocharged diesel engine?（）AAn increased air temperature differential between the cooler inlet and outletBA decrease in the air pressure differential across the coolerCExcessive condensate forming in the air boxDA decrease in the air temperature differential between the cooler inlet and outlet
填空题离心方法主要有差速离心，（），（）。