计 时 器
辩论赛计时,游戏计时,演讲计时等等,都可以使用此软件,方便简单!本资料共包括以下附件:PPTTimer.exe
使用期限：2010.txt
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(You can use this software to time debates, games, speeches, etc. It is convenient and simple! This document includes the following annexes:
PPTTimer.exe
Service life: 2010.txt
.....)
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