The noise from the fan and the toolsThere are a number of devices in the classroom that are damaged or crashed. They have not been repaired or replaced. When it's time to find a problem with these devices ron. For example, a fan in the room was broken or damaged, it will be sent out and rotate it until the noise of the fear that, come fall, who transcribed the projector. For some time, waste problems, teaching students or class presentation.
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