Notice of system maintenance of Course [email protected]

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The system maintenance will be held during the period below, and the following system and services will be temporarily unavailable.

Maintenance

Period
From 9:00 on Friday, December 29, 2017 to 21:00 on Saturday, December 30, 2017
Service influence
Course [email protected] will be not available.

We are sorry for the inconvenience and appreciate your cooperation.

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