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社会交往道德规范的内容是什么？

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阐述产业结构高度化的表现特征

ou are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA, a big file tablespace of size 100 TB on tape drive, but you have tapedrives of only 10 GB each. Which method would accomplish the task quickly and efficiently?（）

A. parallel image copy backup
B. backup with MAXPIECESIZE configured for the channel
C. parallel backup with MAXPIECESIZE configured for the channel
D. intrafile parallel backu

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一般认为土壤盐基饱和度为（）土壤肥力比较低下

A. ≥80%
B. 50%---80%
C. ＜50%

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约5%～10%的神经性厌食患者死于极度营养不良或其他并发症或心境障碍所致的自杀等。()

A. 正确
B. 错误

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