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某厂根据市场需求开发折叠式小凳(如图所示)．凳面为三角形的尼龙布，凳脚为三根细钢管．考虑到钢管的受力和人的舒适度等因素，设计小凳应满足：①凳子高度为30cm，②三根细钢管相交处的节点O与凳面三角...
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2016年·上海黄浦区二模如图小凳的凳面为圆形凳脚为三根细钢管考虑到钢管的受力等因素设计的小凳应满
里脚手架主要有凳式折叠式支柱式等几种形式
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2000Pa
10000Pa
40000Pa
方凳腿在制作时凳腿应是向外微斜状使凳面裙板20mm会因此显得上大下小给人以不稳定感所以要微斜
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某厂根据市场需求开发折叠式小凳如图所示.凳面为三角形的尼龙布凳脚为三根细钢管.考虑到钢管的受力和人的
电工维修电路有时需要带电操作如图所示以下操作不会发生触电事故的是
甲站在绝缘凳上同时接触火线和零线
乙站在绝缘凳上仅接触火线
丙站在地上仅接触火线
丁站在地上同时接触火线和零线
方凳腿在制作时凳腿应呈向外微垂状因凳面斜接裙板20mm会因此显得上大下小给人以不稳定感
某大学计划为新生配备如图1所示的折叠凳.图2是折叠凳撑开后的侧面示意图木条等材料宽度忽略不计其中凳腿
某厂根据市场需求开发折叠式小凳如图所示．凳面为三角形的尼龙布凳脚为三根细钢管．考虑到钢管的受力
主要用于运送和保护脊颈椎受伤人员
折叠式担架
肢体固定气囊
救生三角架
躯体固定气囊
下列不属于折叠式脚手架的是
角钢折叠式
钢管折叠式
钢筋折叠式
套管折叠式
李明同学带领他的通用技术活动小组对一些儿童和成人进行了儿童对户外小凳的需求的调查确定了便携式小凳的设
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编写产品说明书
申请专利
找厂家投入生产
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下列选项中关于一般室内脚手架的搭设间距叙述正确的有
钢管折叠马凳式脚手架搭设间距为：砌筑时小于1.6m；粉刷时小于2.5m
角钢折叠马凳式脚手架搭设间距为：砌筑时小于2m；粉刷时小于2.5m
搭设马凳脚手架，地面应夯实拍平，马凳上的架板应铺平
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竹、木、钢制小马凳脚手架，其间距应不大于1.5m
其架设间距不超过两米可搭设两步是脚手架
角钢折叠式
钢管折叠式
钢筋折叠式
伞脚折叠式
如图小凳凳面为圆形凳脚为三根细钢管.考虑到钢管的受力等因素设计的小凳应满足三根细钢管相交处的节点与凳
常用的里脚手架的形式主要有
角钢（钢筋、钢管）折叠式里脚手架
支柱式里脚手架
多立杆式脚手架
马凳式里脚手架
碗扣式钢管脚手架
如图小凳凳面为圆形凳脚为三根细钢管.考虑到钢管的受力等因素设计的小凳应满足三根细钢管相交处的节点与凳
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XiaoShenyangwillpresentacomedyinmid-May.You’llenjoyerrenzhuanalocalfolkdancefromNortheastChina. Time:8:00p.m.May10 Tickets:280—800yuan Venue:ShenzhenSportsCenter Booking:11185 RubinaAlitheyoungactresswhoplayedLakitainSlumdogMillionaire贫民窟的百万富翁isperforminginamusicalnamed"SleepingBeauty". Time:7:30p.m.June1 Tickets:280yuan Venue:ShenzhenPolyCenter Booking:86371698 LiuQianawell-knownmagician魔术师fromTaiwanisperformingwonderfulmagictricks. Time:3:00p.m.June20 Tickets:500yuan5%offifyoubuyonline Venue:ShenzhenChildren’sPalace Booking:89812344 BritainsingingsensationSusanBoyleiscoming!Youmayenjoyherangelicvoiceinherconcert. Time:8:00p.m.July25 Tickets:380—700yuan Venue:ShenzhenGrandTheater Booking:82337625 Accordingtotheadvertisementyoucandialtobookaconcertticket.
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子在川上曰逝者如斯夫不舍昼夜这句话蕴含的道理是
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EyesCanSpeak Muchmeaningcanbecarriedclearlywithoureyessoitisoften1thateyescanspeak.Doyouhavesuchkindof2Inabusyoumaylookatastrangerbutnottoolong.Andifhe3thatheisbeinglookedathemayfeeluncomfortable.Thesameindailylife.Ifyouarelookedatformorethannecessaryyouwilllookatyourselfupanddowntoseeifthereis4wrongwithyou.Ifnothinggoeswrongyouwillfeel5towardthepersonwhoislookingatyouthatway.EyesdospeakrightLookingtoolongatsomeonemayseemtobeimpolite.Butsometimesthingsaredifferent.Ifamanlooksatawomanformorethan10secondsitmaymeanthathewishestoattract吸引herattentiontomakeherunderstandthathe6her.Whentwopeopleareinaconversationthespeakerwillonlylookatthelistenerfromtimetotime7makesurethatthelistenerdoespayattention8whatheorsheisspeaking.Loverswillenjoylookingateachotherorbeinglookedatforalongtimetoshowsomethingthat9cannotexpress.Clearlyeyecontactshouldbedoneaccordingtotherelationshipbetweentwopeopleandtheplace10youstay. 第4空应选择
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Maryismybestfriend.We’reallfromHenan1.butnowIliveinBeijingwhenshelivesin2.Guangzhou.Wedon’tlookeachotherveryoften3.butwe’rekeepintouchallthetime.Ioftenwrite4.toMaryandtellingheraboutthethingsthat5.arehappenedatmycompanyandsheoften6.writestomeaboutherwork.Wetalkonphone7.onceaweek.SometimeIcallheronher8.carphoneorwesende-mailstoeachother.9. We’rereallyluck.Therearcsomanyways10.wecankeepintouchwitheachother. 第2空应
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EyesCanSpeak Muchmeaningcanbecarriedclearlywithoureyessoitisoften1thateyescanspeak.Doyouhavesuchkindof2Inabusyoumaylookatastrangerbutnottoolong.Andifhe3thatheisbeinglookedathemayfeeluncomfortable.Thesameindailylife.Ifyouarelookedatformorethannecessaryyouwilllookatyourselfupanddowntoseeifthereis4wrongwithyou.Ifnothinggoeswrongyouwillfeel5towardthepersonwhoislookingatyouthatway.EyesdospeakrightLookingtoolongatsomeonemayseemtobeimpolite.Butsometimesthingsaredifferent.Ifamanlooksatawomanformorethan10secondsitmaymeanthathewishestoattract吸引herattentiontomakeherunderstandthathe6her.Whentwopeopleareinaconversationthespeakerwillonlylookatthelistenerfromtimetotime7makesurethatthelistenerdoespayattention8whatheorsheisspeaking.Loverswillenjoylookingateachotherorbeinglookedatforalongtimetoshowsomethingthat9cannotexpress.Clearlyeyecontactshouldbedoneaccordingtotherelationshipbetweentwopeopleandtheplace10youstay. 第6空应选择
Nowsatellitesarehelpingtoforecasttheweather.Theyareinspaceandtheycanreachanypartoftheworld.Thesatellitestakepicturesoftheatmospherebecausethisiswheretheweatherform.Theysendthesepicturestotheweatherstations.Someteorologistscanseetheweatherofanypartoftheworld.Fromthepicturesthescientistscanoftensayhowtheweatherwillchange. Todaynearlyfivehundredweatherstationsinsixtycountriesreceivesatellitepictures.Whentheyreceivenewpicturesthemeteorologistscomparethemwithearlierones.Perhapstheymayfindthatthecloudshavechangedduringthelastfewhours.Thismaymeanthattheweatheronthegroundmaysoonchangetoo.Intheirnextweatherforecastthemeteorologistscansaythis. Sotheweathersatellitesareagreathelptothemeteorologists.Beforesatelliteswereinventedthescientistscouldforecasttheweatherforabout24or48hours.Nowtheycanmakegoodforecastsforthreeorfivedays.Soonperhapstheymaybeabletoforecasttheweatherforaweekormoreahead. Maybewe’llsoonbeabletoforecasttheweatherfor.
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能够听说读写词组:openthedoor;onthetable;nearthephone2.能够听说读句型:a.Aretheyonthe/Aretheynear...b.Yestheyare.Notheyaren’t.3.培养学生运用英语与人对话的能力
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