several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measuremen给他们创造表现机会，增强学生学习兴趣和信心，让每个学生的能力和素质都得以提高。趣味游戏也是激发学生学习兴趣最好的办法，两人抬一捅水，随着两人抬的角度不同，吃力程度也不一样。一个力气小的学生可以轻松拉动两个大力士等等。让学生在动感情趣中进入物理世界，使学生在轻松愉快中掌握知识，这也是注重过程，注重体验的表现。多媒体辅助教学，能使抽象问题用形象生动的画面形象地表达出来，悦耳动听的音乐使学生劳逸结合，始终保持旺盛的情趣，并结合图文，充分展现出知识的形成过程，是一根教鞭，一支粉笔，一张嘴不能比拟的，对学生理解问题起到事半功倍的效果，也符合学生的心里特征，学生非常积极地参与和投入。
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line d
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