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画出如图所示的正方体的三视图．正视图： 左视图：俯视图：
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某三棱锥的正视图和俯视图如图所示则其左视图面积为________.
在一个几何体的三视图中正视图和俯视图如图所示则相应的侧视图可以为
@B.
@D.
三视图是指正视图俯视图侧视图
三视图指的是正视图俯视图左视图三个视图
某几何体的三视图如图所示正视图侧视图俯视图都是边长为1的正方形则此几何体的外接球的表面积为
3π
4π
2π
一几何体的三视图如图所示其中正视图与左视图是两个全等的等腰三角形俯视图是圆则该几何体的侧面积为.
三视图包括主视图和左视图
右视图
俯视图
正视图
前视图
如图9是由一些大小相同的小正方体组合成的简单几何体.1图9中有块小正方体2分2该几何体的正视图如图所
包装设计的三视图是指
正视图
俯视图
侧视图
反视图
如图由6个大小相同的正方体搭成的几何体则关于它的视图说法正确的是
正视图的面积最大
左视图的面积最大
俯视图的面积最大
三个视图的面积一样大
如图是一几何体的直观图正视图和俯视图在正视图右侧按照画三视图的要求画出的该几何体的侧视图是
@B.
@D.
由7个大小相同的正方体搭成的几何体如图所示则关于它的视图说法正确的是
正视图的面积最大
俯视图的面积最大
左视图的面积最大
三个视图的面积一样大
如图所示的三个图中上面是一个长方体截去一个角所得多面体的直观图它的正视图和侧视图如图所示单位cm.1
如图所示是一个几何体的直观图正视图俯视图侧视图其中正视图为直角梯形俯视图为正方形侧视图为直角三角形尺
三视图是指正视图侧视图和
仰视图
俯视图
背视图
左视图
正投影三视图通常是指
正视图，俯视图，左视图
主视图，俯视图，右视图
主视图，俯视图，左视图
正视图，俯视图，右视图
一个几何体的三视图及其尺寸如图所示其中正视图是直角三角形侧视图是半圆俯视图是等腰三角形则这个几何体的
一个三棱锥的正视图和俯视图如图所示则该三棱锥的俯视图可能为
@B.
@D.
由7个大小相同的正方体搭成的几何体如图所示则关于它的视图说法正确的是
正视图的面积最大
俯视图的面积最大
左视图的面积最大
三个视图的面积一样大
在工程图中下列哪个视图不属于三视图基本视图
正视图
左视图
剖视图
俯视图
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用a1a2…a10表示某培训班10名学员的成绩其成绩依次为85689575889290807887．执行如图所示的程序框图若分别输入a1的10个值则输出的的值为
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已知实数xy满足则的取值范围为．
已知函数fx＝exax+b﹣x2﹣4x曲线y＝fx在点0f0处的切线方程为y＝4x+4． Ⅰ求ab的值 Ⅱ求fx的极大值．
10分假如英语课上老师要求同桌之间交换修改作文请你修改你同桌的以下作文.文中共有10处错误每句中最多有两处.错误涉及单词的增加删除或修改. 增加在缺词处加一个漏词符号∧并在此符号下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错词下面划一横线并在该词下面写出修改后的词. 注意1每处错误及其修改均仅限一词; 2只允许修改10处多者从第11处起不计分. OnedaylittleTonywenttoashoppingcenterwithhisparent.Itwasverycrowded.Tonysawatoyonashopwindow.Helikeditsoverymuchthathequicklywalkedintotheshop.Afterlooksatthetoyforsometimeheturnedaroundandfoundwherehisparentsweremissing.Tonywasscaredandbeguntocry.Awomansawhimcryingandtellinghimtowaitoutsideashop.Fiveminuteslater.Tonysawparents.MomsaidHownicetoseeyouagain!DadandIwereterribleworried.Tonypromisedherthatthiswouldneverhappenagain.
30分Wheredoyougowhenyouwanttolearnsomething?Afriend?Atutor?Theseareall41acesoflearning.Butitmaywellbethatthelearningyoureallywant42somewhereelseinstead.Ihadthe43ofseeingthisfirsthandona44. Mydaughterplaysonarecreationalsoccerteam.Theydidverywellthisseasonandso45atournamentwhichnormallywasonlyformoreskilledclubteams.Thisledtosome46experiencesonSaturdayastheyplayedagainstteams47trained.Throughthefirsttwogamesher48didnotgetonseriousshotongoal.AsapparentI49seeingmydaughterplayingherbest50stilldefeated. ITseemedthatsomethingclickedwiththe51betweenSaturdayandSunday.Whenthey52fortheirSundaygametheywere53different.Theyhadbegunintegrate融合thekindsofplayandteamworktheyhad54thedaybeforeintotheir55.Theyplayedaggressivelyand56scoredagoal. It57methatplayingagainsttheotherteamwasagreat58momentforallthegirlsontheteam.Ithinkitisageneralprinciple.59isthebestteacher.Thelessonstheymaynotbe60whattheywouldhavegotteninschool.Butarecertainlymorepersonalandmeaningfulbecausetheyhadtoworkthemoutontheirown. 41.A.public B.traditional C.official D.special 42.A.passes B.works C.lies D.ends 43.A.dream B.idea C.habit D.chance 44.A.trip B.holiday C.weekend D.square 45.A.won B.entered C.organized D.watched 46.A.painful B.strange C.common D.practical 47.A.less B.poorly C.newly D.better 48.A.fans B.tutors C.class D.team 49.A.imagined B.hated C.avoided D.missed 50.A.if B.or C.but D.as 51.A.girls B.parents C.coaches D.viewers 52.A.dressed B.showedup C.madeup D.planned 53.A.slightly B.hardly C.basically D.completely 54.A.seen B.known C.heard D.read 55.A.styles B.training C.game D.rules 56.A.even B.still C.seldom D.again 57.A.confused B.struck C.reminded D.warned 58.A.touching B.thinking C.encouraging D.learning 59.A.Experience B.Independence C.Curiosity D.Interest 60.A.harmfulto B.mixedwith C.differentfrom D.appliedto.
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