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我市举行了-次实验创新教学比赛。在这次活动中,本人给三位参赛教师做了实验改进设计,帮助他们在比赛中获两个一等奖,-个二等奖。下面就这三个实验的改进情况与大家交流。
The city held a - experimental innovation teaching competition. In this event, I gave the three participating teachers an improved experimental design to help them win two first prizes in the competition - a second prize. The following three experiments on the improvement of the exchange with you.