summary怎么写prezatation
答案:2 悬赏:50 手机版
解决时间 2021-02-24 08:56
- 提问者网友：遁入空寂
- 2021-02-24 02:13
summary怎么写prezatation
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- 五星知识达人网友：拜訪者
- 2021-02-24 03:49
presentation才对，都是概要和介绍的意思
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- 1楼网友：街头电车
- 2021-02-24 03:57
summaryabouttrees
treesareimportanttoourlife.treesprovideoxygentous.asweallknowduringphotosythesis,carbondioxideistakeninwhileoxygenisgivenoffbthetrees.sotreesareveryimportantastheyreplanishtheair.treesarealsonaturalresources,weuesedtreestomakepaperandfurniture,weeatthefruitswhichbearfromthetree.besidesallthese,treesalsohelptosaveourenvironment.therootsofthetreescanholdthesoilfirmlywhichhelpstoreducethechancesofsurfacerun-off,soilerosionandevenlandslide.lesssolparticleswillbewashedintotheriverbyrain,thustherewillbelesswaterpollutionandfloods.
leavesarenaturalfertilizer.whentheleavesfallontotheground.theywilldecaygradually.thedecomposedleavesaresourceofnutrientswhichcanfertilethesoil.
inconclusion,treesareusefulinmanyways,andtheyareveryimportanttous.
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