Make( )copies of important files, and st

题库2022-08-02  34

问题 Make( )copies of important files, and store them on separate locations to protect your information.A.backB.back-upC.back-outD.backgrounD.

选项 A.back
B.back-up
C.back-out
D.backgrounD.

答案 B

解析 ()重要文件的副本,并存储在不同的位置以保护您的信息。A后退B.备份C退出D.背景
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