A.安全數(shù)據(jù) B.數(shù)據(jù)庫(kù)客體 C.控制數(shù)據(jù) D.審計(jì)數(shù)據(jù)
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A.數(shù)據(jù)庫(kù) B.表 C.記錄 D.字段