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笔者作为第七届全国中学物理青年教师教学大赛初中组特聘评委和宁夏代表团领队兼指导教师参加了本次大赛的评判和观摩活动。下面就初中
As a member of the 7th National Junior High School Physics Young Teachers’ Teaching Competition junior high school teaching team, the author and the Ningxia delegation leader and instructor participated in the judgement and observation activities of this competition. The following junior high school