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单项选择题During the implement phase, systems acceptance testing does which of the following for the customer? Select exactly 1 answer(s) from the following:()。

A、installation, configuration, and testing, as well as the commissioning of tools and processes in accordance with the operations implementation plan

B、provision of information regarding customer-specified design requirements and configuration

C、the migration of network services from an existing state to a future state in accordance with the migration plan

D、the provision of an objective means of measuring system operability and functionality

  • D
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