(Go to the podium and click the mouse, let the PPT turn down a page, and then continue to speak. In this way, whether it is about the listener or the lecturer, it is a very painful and frustrating office (of course, those who use remote pens are not in the range of comments, so we don't have to, because we have mobile phones). With a sudden whim, we made a tool to use mobile phones to remotely control the PPT, which liberated the lecturer from the podium completely, Imagine holding a mobile phone and striding across the hall. This material includes the following attachments:)
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