题目内容（请给出正确答案）

[主观题]

The DBMS can maintain the integrity of the database by allowing ______ to update the same record at

the same time.

A．more than one user

B．no more than one user

C．two customers with similar customer numbers

D．company specialists

提问人：网友anonymity 发布时间：2022-01-06

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