ppt/ancient prose.ppt
ppt/biology_experiment.ppt
ppt/botany.ppt
ppt/caizheng.pot
ppt/ceshi.pot
ppt/chemistry_acid.ppt
ppt/chemistry_experiment.ppt
ppt/Chinese.ppt
ppt/Chinese_composition.ppt
ppt/Class meeting_debate.ppt
ppt/Class meeting_report.ppt
ppt/commun1.ppt
ppt/commun2.ppt
ppt/commun3.ppt
ppt/Commun4.ppt
ppt/economic geography.ppt
ppt/edu1.ppt
ppt/edu2.ppt
ppt/edu3.ppt
ppt/Edu4.ppt
ppt/englishism.ppt
ppt/English_composition.ppt
ppt/fin1.ppt
ppt/fin2.ppt
ppt/fin3.ppt
ppt/geography1.ppt
ppt/geography2.ppt
ppt/Grade_competition.ppt
ppt/grade_debate.ppt
ppt/history_event.ppt
ppt/history_science.ppt
ppt/history_war.ppt
ppt/hunli.pot
ppt/jiangzhuang.pot
ppt/jilituandui.pot
ppt/math_application.ppt
ppt/math_example.ppt
ppt/medi1.ppt
ppt/medi2.ppt
ppt/medi3.ppt
ppt/music.ppt
ppt/naolijidang.pot
ppt/nianduzongjie.pot
ppt/Other1.ppt
ppt/peixun.pot
ppt/physics.ppt
ppt/physics_experiment.ppt
ppt/prelection.ppt
ppt/program.ppt
ppt/science1.ppt
ppt/science2.ppt
ppt/shangyejihua.pot
ppt/tech1.ppt
ppt/tech2.ppt
ppt/tech3.ppt
ppt/theorem.ppt
ppt/translation.ppt
ppt/Travel1.ppt
ppt/tuixiao.pot
ppt/virtuosity.ppt
ppt/zoology.ppt
ppt