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003模型处理简单化近似简化是常法
m2=一2A=F5】=VtuP=01p=d(ma)i模型处理简单化近以简化是常法PP(等(6X>=乙KTB元F-56A=P(☑vote.-N=)TS=∫0Pou-avuif学亦有道物理工作室2-v-XUEYIYOUDAOWULIGONGZUOSHI
劳动最光荣-劳动节主题班会-09
More than 100 years after theobservance,there is still some doubt aswho first proposed the装hoiday for workers.劳动最光荣一直在奋斗的路上!向伟大的劳动人民致敬