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crimeas [40]
3 years ago
10

Perfective maintenance usually is cost effective ____ the system

Computers and Technology
2 answers:
Svetlanka [38]3 years ago
6 0

Answer:

During the middle of

Explanation:

Perfective maintenance usually is cost effective during the middle of the system.

Anni [7]3 years ago
5 0

Perfective maintenance usually is cost effective during the middle of the system.

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