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根据哈根-泊谡叶方程，超滤装置的产水量与推动压力、膜的细孔密度和细孔直径的4次方的积成正比，与通过（）和（）的积成反比。

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You have enabled backup optimization for the RMAN environment. Identify two criteria on which RMAN will skip the file， if it has already been backed up.（）

A. The data file backup is done with multiple channels
B. The data files is in the read-write mode after being backed up in the read only mode
C. The backup was taken after the data files was taken offline-normal or is in the read only mode
D. The data file backup complies with the back retention policy and the backup duplexing fe ture

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社会主义道德的基本原则是集体主义。

A. 正确
B. 错误

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钩腕上超过腕高（）%的裂纹禁止焊修。

A. 10
B. 20
C. 30
D. 40

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社会或他人对特定公民、法人的品德、才干、信誉、商誉、成绩、资历、身份、等各方面评价的总和称之为（）

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