【单选题】【消耗次数：1】
数据库管理系统是（ ）
①
采用了数据库技术的计算机系统
②
包括DBA、计算机硬件及DB的系统
③
位于用户与OS之间的数据管理软件
④
包括OS在内的数据管理软件
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相关题目
【单选题】
数据库管理系统是（ ）
①
A.采用了数据库技术的计算机系统
②
B.包括DBA、计算机硬件及DB的系统
③
C.位于用户与OS之间的数据管理软件
④
D.包括OS在内的数据管理软件
【单选题】
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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没有任何关系
【单选题】
数据库（DB）、数据库系统（DBS）和数据库管理系统（DBMS）三者之间的关系是( )。
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DBS包括DB和DBMS
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DBMS 包括DB 和DBS
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DB 包括DBS 和DBMS
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DBS 就是DB,也就是DBMS
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