【判断题】【消耗次数：1】
数据库管理系统是数据库系统的核心组成部分。
①
正确
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错误
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数据库DB、数据库系统DBS、数据库管理系统DBMS之间的关系是（ ）
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DBMS包含DB和DBS
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DBS包含DB和DBMS
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