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The children in their father's shop when things are busy.A. help to B. help on C. help away D. ...
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北京卷27.Childrenwhoarenotactiveordietishighinfatwill
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122.Thechildrenareveryfatbutbecausetheyappearill-n
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Childrenwhoarenotactiveor____dietishighinfatwillga
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AccordingtoDr.MarcieSchneiderandEricaLeon
it is too bad for youngsters to be a bit fat.
it is necessary for the children to be a bit fat.
youngsters should struggle with their body image.
overweight children should not diet.
Schoolshavebannedcupcakesissuedfatnessreportcardsa
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122.Thechildrenareveryfatbutbecausetheyappearill-n
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Forestshavealwaysbeenusefulandimportanttomenwhomakeuseoftheminmanyways.Everydaytreesareservingmaneverywhere.Treessupplymanwithfruitsandbuildingmaterialsintheformofwood.Withouttreesitwouldbeimpossibletobuildhousesboatsbridgesandsoon.Furnituresuchasdeskschairsandbedsismadeofwood.Treescanstopmanfromtheterribleheat.They'realsousefulinpreventing阻止goodandrichtopsoilfrombeingwashedawayduringheavyrains.Iftherewerenoforestsheavyrainswouldwashawaytherichsurface表层soilthatissoimportanttoplants.Theresultisthatthelandwillbecomeadesert.Thereareplentyofdesertareasintheworld.Alongtimeagothesedesertareasusedtobeveryrichareasbutmeninthepasthadnoenoughknowledgeaboutscienceofnatureandtheycutdowntoomanytreesintheareawheretheylivedandneverplantednewones.Byandbytherichsurfacesoilwasblownandwashedawaybystrongwindsandheavyrains.Intheendtherichlandchangedintouselessdesertswherenothingcouldgrow. 1.Treesarenotservingmaneverywhere 2.Withouttreesitwouldbepossibletobuildhousesboatsbridgesandsoon 3.Treescanstopmanfromtheterribleheat. 4.Therearefewdesertareasintheworld. 5.Intheendtherichlandchangedintouselessdesertswherenothingcouldgrow.
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在探究影响液体压强大小的因素实验中小明用同一个压强计做了如图所示的甲乙丙三次实验烧杯中的液体均未溢出．甲乙金属探头深度相同U形管中液面的高度差h乙＞h丙＞h甲．1组装好的完好的压强计中的U型管选填是或不是连通器．2比较实验甲乙可知液体压强与有关3小明又找来了密度未知的液体做了如图丁所示的实验U形管中液面的高度差h丙＞h丁关于丙丁容器中液体密度的大小关系你认为正确的是．A．ρ盐水＞ρ液B．ρ盐水＜ρ液C．无法比较
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