(1) provide information, including a schedule and description of the item.
(2) introduced the speakers and the people involved.
(3) the start was greeted and welcomed. Invited to the ceremony Speaking up speakers And introduces the history of lecturer
(4) are joined each event respectively.
(5) is in the process of problem solving. In the event of a change. Or a situation where the unexpected happens, such as a microphone attached to a power failure, etc. The operation is going smoothly. And objectives of the event.
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