系统在运行过程中,由于某种原因,造成系统停止运行,致使事务在执行过程中以非控制方式终止,这时内存中的信息丢失,而存储在外存上的数据未受影响,这种情况称为
A.事务故障
B.介质故障
C.系统故障
D.运行故障
正确答案是C
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