七年级数学上册第2章有理数2.2数轴2.2.1数轴练习ppt课件新版华东师大版.ppt
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1、谢谢!Miss Richards was a teacher at a school for boys and girls.She _1 chemistry and physics from the lowest to the highest classes in the _2 .Sometimes the new classes 3 rapidly,but sometimes they were very 4 ,and then Miss Richards had to 5 things many times.One year,the first class had been studyin
2、g chemistry for several _6_ when Miss Richards suddenly asked,What is water?Who knows?7_ up?There was silence(沉默)for a few seconds,and Miss Richards felt sad(难过),but then one boy 8 his hand.Yes,Dick?said Miss Richards encouragingly(鼓励地).He was not one of the brightest children in the class,so she wa
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