扫二维码下载作业帮
2亿+学生的选择
下载作业帮安装包
扫二维码下载作业帮
2亿+学生的选择
When we meet any ,we should face it bravely.这里的difficulty为什么不是用复数形式?
无敌2imQC59
扫二维码下载作业帮
2亿+学生的选择
any 在此不是表示疑问,而是“任何”之意,这种情况下加单数名词,表示“任何一个（一种）” 请看清楚,本句不是疑问句啊
为您推荐：
其他类似问题
difficultn. 1. 困难; 难度2. 难事; 麻烦difficulties困难in...difficulties 处境困难 处境尴尬
因为前面有关键词any，表示任意一个，任何的意思，所以要用单数啦不知是否明白了O(∩_∩)O哈！不懂还可以追问(⊙o⊙)哦
any不是some的疑问句型的形式吗？？
扫描下载二维码& “It is common and usu...”习题详情
255位同学学习过此题，做题成功率81.9%
It is common and usual to see people&freak out&when they face challenges in their life. We all pass in different life problems and challenges. No one is free of life problems. Only a dead man faces no problem. As long as you are alive, challenges are everywhere.& How do you face problems and challenges in your life? Problems and challenges are the building blocks of your personality. They make you who you are. Besides, whether what happened in your life builds or destructs you depends on how you look at it. If you take your problems as troubles, they will be troubles and may cause destruction. If you take them as constructive tools, you are going to be built up on them.& Problems are everywhere. No one can avoid them. And they are good too. They open up a different look and opportunity if you are willing to see. When you face troubles, do not frustrate or freak out. Just cool yourself to think in a different direction. Think in a positive way. Every problem has its own good as well as bad sides. Focus on the good one. Look at the bright side. Besides, there is always a good person, perhaps your mom or dad, or one of your friends, right beside you who can turn everything into your best if you are willing to turn to them. No matter what happens, they will be there to help you. Trust them and they will never let you down. All you need to know is that you are loved wherever you are.&【小题1】What’s the meaning of the underlined phrase “freak out” in Paragraph 1?A．Feel shy.B．Stay calm.C．Keep up.D．Feel upset.【小题2】In Paragraph 2, the writer implies that &&&&.A．problems cause troublesB．attitude is everythingC．challenges can be avoidedD．personalities are built on failures【小题3】According to the last paragraph, when we’re in trouble, we &&&&.A．can only depend on our parentsB．are not aloneC．should only believe ourselvesD．are not confident【小题4】What can be the best title of the passage?A．How to Avoid ProblemsB．Challenges Are EverywhereC．Face Your Challenges BravelyD．You Are Loved Wherever You AreD&
本题难度：一般
题型：解答题&|&来源：2013-四川省成都石室中学高三上学期期中考试英语试卷
分析与解答
习题“It is common and usual to see peoplefreak outwhen they face challenges in their life. We all pass in diff...”的分析与解答如下所示：
：文章大意：文章讲述的是我们每个人都会面临挑战，我们的态度决定着我们面临的困难的解决，鼓励读者要积极乐观的面对，勇敢的去迎接挑战。【小题1】猜测词义题。根据后面的when they face challenges 可知，面对挑战的时候人们会变得心烦。选D。【小题2】推理判断题，根据How do you face problems and challenges in your life? Problems and challenges are the building blocks of your personality. They make you who you are .if you take your problems as troubles, they will be troubles and may cause destruction. If you take them as constructive tools, you are going to be built up on them如果你把它们当成是挑战，它们就会很麻烦，如果你把它们当成是工具，你就会通过它们有提高，可知，我们的态度决定着一切。选B。【小题3】推理判断题，根据最后一段的句子：No matter what happens, they will be there to help you. Trust them and they will never let you down. All you need to know is that you are loved wherever you are可知，每当你又困难的时候，总是有人会帮助你，你不是孤单的。选B。【小题4】主旨大意题。根据全文可知作者通过文章鼓励读者积极面对困难，挑战，所以选择C
找到答案了，赞一个
如发现试题中存在任何错误，请及时纠错告诉我们，谢谢你的支持！
It is common and usual to see peoplefreak outwhen they face challenges in their life. We all pass in...
错误类型：
习题内容残缺不全
习题有文字标点错误
习题内容结构混乱
习题对应知识点不正确
分析解答残缺不全
分析解答有文字标点错误
分析解答结构混乱
习题类型错误
错误详情：
我的名号（最多30个字）：
看完解答，记得给个难度评级哦！
“It is common and usu...”的最新评论
欢迎来到乐乐题库，查看习题“It is common and usual to see peoplefreak outwhen they face challenges in their life. We all pass in different life problems and challenges. No one is free of life problems. Only a dead man faces no problem. As long as you are alive, challenges are everywhere. How do you face problems and challenges in your life? Problems and challenges are the building blocks of your personality. They make you who you are. Besides, whether what happened in your life builds or destructs you depends on how you look at it. If you take your problems as troubles, they will be troubles and may cause destruction. If you take them as constructive tools, you are going to be built up on them. Problems are everywhere. No one can avoid them. And they are good too. They open up a different look and opportunity if you are willing to see. When you face troubles, do not frustrate or freak out. Just cool yourself to think in a different direction. Think in a positive way. Every problem has its own good as well as bad sides. Focus on the good one. Look at the bright side. Besides, there is always a good person, perhaps your mom or dad, or one of your friends, right beside you who can turn everything into your best if you are willing to turn to them. No matter what happens, they will be there to help you. Trust them and they will never let you down. All you need to know is that you are loved wherever you are.【小题1】What’s the meaning of the underlined phrase “freak out” in Paragraph 1?A．Feel shy.B．Stay calm.C．Keep up.D．Feel upset.【小题2】In Paragraph 2, the writer implies that ____.A．problems cause troublesB．attitude is everythingC．challenges can be avoidedD．personalities are built on failures【小题3】According to the last paragraph, when we’re in trouble, we ____.A．can only depend on our parentsB．are not aloneC．should only believe ourselvesD．are not confident【小题4】What can be the best title of the passage?A．How to Avoid ProblemsB．Challenges Are EverywhereC．Face Your Challenges BravelyD．You Are Loved Wherever You Are”的答案、考点梳理，并查找与习题“It is common and usual to see peoplefreak outwhen they face challenges in their life. We all pass in different life problems and challenges. No one is free of life problems. Only a dead man faces no problem. As long as you are alive, challenges are everywhere. How do you face problems and challenges in your life? Problems and challenges are the building blocks of your personality. They make you who you are. Besides, whether what happened in your life builds or destructs you depends on how you look at it. If you take your problems as troubles, they will be troubles and may cause destruction. If you take them as constructive tools, you are going to be built up on them. Problems are everywhere. No one can avoid them. And they are good too. They open up a different look and opportunity if you are willing to see. When you face troubles, do not frustrate or freak out. Just cool yourself to think in a different direction. Think in a positive way. Every problem has its own good as well as bad sides. Focus on the good one. Look at the bright side. Besides, there is always a good person, perhaps your mom or dad, or one of your friends, right beside you who can turn everything into your best if you are willing to turn to them. No matter what happens, they will be there to help you. Trust them and they will never let you down. All you need to know is that you are loved wherever you are.【小题1】What’s the meaning of the underlined phrase “freak out” in Paragraph 1?A．Feel shy.B．Stay calm.C．Keep up.D．Feel upset.【小题2】In Paragraph 2, the writer implies that ____.A．problems cause troublesB．attitude is everythingC．challenges can be avoidedD．personalities are built on failures【小题3】According to the last paragraph, when we’re in trouble, we ____.A．can only depend on our parentsB．are not aloneC．should only believe ourselvesD．are not confident【小题4】What can be the best title of the passage?A．How to Avoid ProblemsB．Challenges Are EverywhereC．Face Your Challenges BravelyD．You Are Loved Wherever You Are”相似的习题。发布时间： 01:54:41
资源格式：DOC
内容详情：
he man's problem? A His back hurts
B He has a fever
C He has a stomachache 听第
段材料，回答第 至
Why did the woman mention the Sahara desert? A She watched a TV program about it last night B She thinks it is boring to hitchhike across the Sahara desert C She knows that the man likes foreign things
What kind of film does the woman like? A Love stories
B Travel stories
C Horror stories
What can we learn about the man speaker? A He does not like having lunch with the woman B He likes unusual food C He gets sick of chips
What does the man like? A Greek food B Love stories and chips
C New food and horror films 听第
段材料，回答第 至
How many ways are mentioned to solve personal problems?
Why does the writer suggest stating the problem in a few words?
A To draw other people's attention
B To know where the problem is
C To find a solution to the problem
What is the best way to sol...
部分内容简介：&&&&&&&&heman'sproblem?AHisbackhurtsBHehasafeverCHehasastomachache听第段材料，回答第至题。&&&&&&&&WhydidthewomanmentiontheSaharadesert?AShewatchedaTVprogramaboutitlastnightBShethinksitisboringtohitchhikeacrosstheSaharadesertCSheknowsthatthemanlikesforeignthingsWhatkindoffilmdoesthewomanlike?ALovestoriesBTravelstoriesCHorrorstoriesWhatcanwelearnaboutthemanspeaker?AHedoesnotlikehavinglunchwiththewomanBHelikesunusualfoodCHegetssickofchipsWhatdoesthemanlike?AGreekfoodBLovestoriesandchipsCNewfoodandhorrorfilms听第段材料，回答第至题。&&&&&&&&Howmanywaysarementionedtosolvepersonalproblems?ATwoBThreeCFourWhydoesthewritersuggeststatingtheprobleminafewwords?ATodrawotherpeople'sattentionBToknowwheretheproblemisCTofindasolutiontotheproblemWhatisthebestwaytosolveproblems?AFindingthecauseofyourunhappinessBFacingtheproblemsbravelyCMakingdirectattack__第二部分：英语知识运用（共两节，满分分）第一节：单项填空（共题；每小题分，满分分）请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。&&&&&&&&—Arewegoingtobelateforthemovie?—________WestillhavehalfanhourbeforethemoviebeginsAHurryupBEnjoyyourtimeCGoodluckDTakeyourtimeUndertheDome,adocumentaryself_fundedbyChaiJing,hasrapidlyincreased________public’sawarenessabout________airpollutionA/；/Ba；theCthe；theDthe；/Thisdrugislesslikelytocausesideeffectswhen________lateinthedayAtakingBtakenCtotakeDtakesThosewhocanachievehighgradesinclasstendtobeweakinhandlingsomepracticalproblems,________isoftenthecaseAwhichBasCitDthatLittle_________aboutthemysteriousmountain,soaway__________Adidtheyknow；wenttheyBtheyknew；wenttheyCdidtheyknow；theywentDtheyknew；theywentThe________childwasfinallytoldwhowerehistrueparents____________thefactthathelivedahappylifeAadopted；inspiteofBadopting；despiteCadopted；thoughDadopting；inspiteofSam,ineveryway,hashandledthechallenge,_________hisfriends_________howhe’sachievedsuccessinspiteofthedifficultiesAovercome；byBovercoming；withCimpressed；byDimpressing；with—Nowadaysfewpeopledoshoppinginthis_year_oldstore—Whatapity!It____aparticularfavoritewithpeople,knownforsellingtraditionalfoodAisBhasbeenCwasDhadbeen—It’smymother’sfaultthatmyroomisinamess—Nonsense!Yourmotherisnot_________foryourlazinessAblaanmoreorlessreducetheworkofthetourismsites听力原文TextW:IguessI'llsendBettyapostcardfromNewYorkwhenIgothereonmyvacationM:I'msureshe'dbegladtogetoneShehasacollectionofcardsfromallovertheworldTextM:We'dlikeatable,pleaseW:I'msorryWecan'tdoanythingforyourightnowYouseewe'repackedatlunchtimeTextW:Yourtrainwillbereadyforboardinginfifteenminutes,sirBreakfastwillbeofferedinthediningcarifyoulikeM:Good,I'llsendsomee_mailsbeforeleavingTextM:Pam,doyouwanttoridealongtothelibrary?W:I'dliketo,butIhavetowaithereuntilJoecomesTextW:Whereareyougoing,Tom?M:TothesupermarketTomorrowisJean'sbirthday,andIwanttogiveheragiftTextW:Welcometoourcompany,PeterI'dliketotalktoyouaboutthecompanyandyourexperience,OK?__M:OK,MsWhiteW:WellYouseemgoodatdrawingM:YesIthasbeenoneofmyhobbiessinceprimaryschoolW:GoodWeneedsomeonewhocanproducepicturesofourproductButthesalaryisnotsohighM:Itdoesn'tmatterIjustwantachancetogetsomeexperienceTextW:Ted,willyoutalkaboutyourlittlesistertoday?M:YesHernameisSusanSheisauniversitystudentnowSheistwoyearsyoungerthanmeWeseeeachothermorethantwiceamonthShelivesinNewYorkW:Whatdidyoursistergiveyouasyourlastbirthdaygift?M:Birthdaygift?Wedon'treallygivebirthdaygifts,butwegiveeachothersomesmalllettersorcardsonspecialdaysW:Areyouincontactwitheachotherbye_mail?M:Yes,almosteverydayAndsometimeswetalkonthephoneW:Well,ifyoursisterislisteningtoyourprogram,whatwouldyouliketotellherrightnow?M:I'malwayswithyouwhereveryouareW:Oh,whatagreatbrother!TextM:Um,IthinkIhaveanappointmentwithDrStantonW:OKTedWilliams,right?Isthetwoo'clockappointment?M:That'srightThisismyfirstnamehere,soW:Yes,IjustneedtogetsomeinformationforourfilesM:OKW:What'syouraddress,please?M:Oh,it'sABellStreetW:AllrightAndyourphonenumber?M:It'sW:OKIneedyourdateofbirthandhealthinsurancenumberM:Uh,Mayth,,andmyhealthinsurancenumberletmeseeW:OK,andwhatseemstobetheproblem?M:Well,I'vebeenhavingthesestomachpainsandW:OK,that'sallIneedfornowPleasetakeaseatoverthereandthedoctorwillbewithyoushortlyTextW:Didyouseethelatenightfilmontelevisionyesterday?M:TheoneonChannel?W:No,onChannelItwasaboutacouplewhohitchhikedacrosstheSaharadesertM:No,Ididn'tWasitgood?W:Well,itwasquitegood,Isuppose,butallthosemilesofsanddidgetabitboringafterawhileIthinkIpreferhorrorfilmstotravelstoriesorlovestoriesM:Iwentoutforamealwithmyfriends,andtheytookmetoaGreekrestaurantW:Soundsunusual!Whatwasthefoodlike?__M:Actually,IquitelikeditW:I'mnotkeenonforeignfoodmyselfI'drathersticktoroastbeeforjustfishandchipsM:YesInoticeyoualwayseatchips!Don'tyouevergetsickofchips?W:No,neverInfact,I'drathereatchipsthanbreadM:Well,IprefertryingnewfoodtoeatingthesameoldthingsdayafterdayW:Isee,soyouwon'tbecomingtothecafeatlunchtimewithme,thenYou'drathereatonyourown,right?M:WellTextTherearemanywaystosolvepersonalproblemsIfyouareunhappyaboutsomething,faceit,fornooneelsewillpayattentiontoyourproblemsandhelpyououtTrytostatetheprobleminafewwords,sothatyouwillknowexactlywhatyouareagainstThenseeifyoucan“putyourfinger”onthecauseofyourunhappinessTrydirectattackInmanycases,weonly“think”thereisnosolutiontoaparticularproblemButoftenwecanovercometheproblemandachievethegoalbymakingadirectattackThirdly,makesureyouhaveareasonablegoalAlthoughdirectattackisoftenthebestwaytomeetproblems,wehavetoberealisticinjudgingsituationSometimesitisnecessarytochangeeitherthemethodsorthegoalItisalsoimportanttostudythesituationandmakeawisedecisionaboutwhattodoAnyway,howeverseriousaproblemyoumayhave,youshouldfaceit二次根式的加减运算课题二次根式的加减运算课时使用人学习目标（）掌握同类二次根式的定义（）掌握二次根式的加、减运算的方法步骤，能进行二次根式的混合运算，掌握乘法公式在混合运算的应用重点难点同类二次根式的条件，二次根式加减运算及二次根式的混合运算二次根式的混合运算学习内容师生随笔一：感悟新知整式加减的一般步骤是计算：??aa，??xx乘法公式平方差公式：完全平方公式：加法的交换律、结合律各是怎样的？乘法的交换律、结合律、分配津各是什么？什么叫做最简二次根式？把下列二次根式化简：（），，；（），，二：探索新知试着做做：计算下列各式：（）?（）?（）?)(?对于上边二次根式的加减应怎样进行？小组合作交流看法对于二次根式的加、减运算应按这样的步骤进行：第一步，第二步，计算：??=（）=（分配律）因为、含有相同的二次根式，所以求它们的和时，可以直接进行合并计算：??===（化成最简二次根式）（分配律）用同样的方法计算：（）?)(?像，，这样的二次根式，叫做同类二次根式例判断下列各式哪些是同类二次根式,,,,,,(提示：先化简，再判断)总结：对于二次根式的加、减运算首先，然后（二次根式的运算结果，也必须化为最简二次根式）试计算：（）?（）??有理数的运算律、运算法则及所有的乘法公式在二次根式的运算中中同样适用二次根式的混合运算顺序与实数中运算顺序一样例计算下列各式（）??（）))((??（）)(?（）))((??分析：（）直接运用二次根式乘法公式计算；（）直接运用平方差公式；（）直接运用完全平方公式；（）运用整式乘法的法则解：（）原式=????（）原式)()(??????（）原式?????????（）原式?????三、整理归纳什么是同类二次根式？二次根式加减的一般步骤是什么？运算结果有什么要求？二次根式四则混合运算的顺序和整式的四则混合运算的顺序是一样的,含相同二次根式的项要合并运算律同样适用于二次根式的运算四、达标测评下列根式不能与合并的是（）ABCD?下列根式中，与是同类二次根式的是（）ABCD下列各式：①+=；②=；③+==；④=，其中错误的有（）A个B个C个D个计算：（）??；（）??；（）??（能力创新）计算：（）???（）???????????????????（）??????（）(?)(?)拦河坝的横截面是等腰梯形的，如图所示，其上底是m，下底m，高是m（）求横截面的面积。&&&&&&&&（）若要修筑m长的拦河坝，需多少土方？课后作业：P习题；习题（）（）()师生反思、总结：__—学年度第一学期期中考试高二英语第Ⅰ卷(选择题共分)第一部分：听力（共题，每小题分，满分分)第一节（共小题；每小题分,满分分）听下面段对话。&&&&&&&&每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。&&&&&&&&听完每段对话后,你都有秒钟的时间来回答有关小题和阅读下一小题。&&&&&&&&每段对话仅读一遍。&&&&&&&&WhatdoweknowaboutBetty?AShehastraveledworld_wideBSheisgoingtoNewYorkCShelikespostcardsWhycan'tthemangetatable?AThewomanisbusyatlunchtimeBThere'snofreetableatthemomentCThere'satrafficjamatthemomentWhatdoesthemanwanttodobeforeleaving?ASendsomee_mailsBHavebreakfastCBuyatrainticketWhywon'tthewomangotothelibrary?AShe'sgoingtherewithJoeBShehastowaitforJoeCShedoesn'thaveacarWhatisthemangoingtodonow?ATogotoJean'sbirthdaypartyBTohelphismotherdosomeshoppingCTobuyabirthdaypresentforJean第二节听下面段对话或独白。&&&&&&&&每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。&&&&&&&&听完每段对话或独白前，你将有时间阅读各个小题，每小题秒钟；听完后，各小题将给出秒钟的作答时间。&&&&&&&&每段对话或独白读两遍。&&&&&&&&听第段材料，回答第、题。&&&&&&&&What'stheprobablerelationshipbetweenthetwospeakers?ATeacherandstudentBHusbandandwifeCInterviewerandintervieweeWhatdoweknowabouttheman?AHehaslotsofworkingexperienceBHewantstoearnmoremoneyCHebegandrawinginprimaryschool听第段材料，回答第至题。&&&&&&&&Howoldistheman'ssister?__ATwoyearsyoungerthanthemanBTwelveyearsyoungerthanthemanCTwoyearsolderthanthemanHowdothemanandhissisterkeepincontactusually?ABysendinglettersorcardseveryweekBBywritinge_mailsalmosteverydayCBycallingeachothereverydayWhatarethetwospeakersprobablydoingnow?ATheyaretalkingonaTVshowBTheyaretalkinginthestreetCTheyaretalkingonaradioprogram听第段材料，回答第至题。&&&&&&&&Whendoestheconversationtakeplace?AInthemorningBIntheafternoonCIntheeveningWhat'stheman'shealthinsurancenumber?AABCWhat'stheman'sproblem?AHisbackhurtsBHehasafeverCHehasastomachache听第段材料，回答第至题。&&&&&&&&WhydidthewomanmentiontheSaharadesert?AShewatchedaTVprogramaboutitlastnightBShethinksitisboringtohitchhikeacrosstheSaharadesertCSheknowsthatthemanlikesforeignthingsWhatkindoffilmdoesthewomanlike?ALovestoriesBTravelstoriesCHorrorstoriesWhatcanwelearnaboutthemanspeaker?AHedoesnotlikehavinglunchwiththewomanBHelikesunusualfoodCHegetssickofchipsWhatdoesthemanlike?AGreekfoodBLovestoriesandchipsCNewfoodandhorrorfilms听第段材料，回答第至题。&&&&&&&&Howmanywaysarementionedtosolvepersonalproblems?ATwoBThreeCFourWhydoesthewritersuggeststatingtheprobleminafewwords?ATodrawotherpeople'sattentionBToknowwheretheproblemisCTofindasolutiontotheproblemWhatisthebestwaytosolveproblems?AFindingthecauseofyourunhappinessBFacingtheproblemsbravelyCMakingdirectattack__第二部分：英语知识运用（共两节，满分分）第一节：单项填空（共题；每小题分，满分分）请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。&&&&&&&&—Arewegoingtobelateforthemovie?—________Westill
A物体处于静止状态，受到的摩擦力大小不变
B物体处于静止状态，受到的摩擦力变小
C物体沿水平面滑动，受到的摩揀力大小个变
D物体沼水平面滑动，受到的摩擦力变小
木块置于木板上，与木板始终保持相对静止
、 园林工人为使灌木围成的绿篱长得茂密、整齐，需要对绿篱定期修剪，其目的是
A抑制侧芽生长
B抑制其开花结果
C抑制向光生长
D促进侧芽生长
、下列叙述中，不属于种群空间特征描述的是
A斑马在草原
D HCl 用 NA 表示阿伏加德罗常数的值，下列说法正确的是
A常温常压下，
gO 中含有的氧分子数为 NA B
molOH_中含有的电子数为 NA
C标准状况下，
L HO 中含有的氢原子数为 NA D
I like /don’t like…
My favourite subject(s) is/are…
I can learn a lot about…
It helps me…
It is fun/interesting I cannot…,so…
We always have…
() Writing:（选做）
B 根据自己的 happines
that I could have more time for my hobbies 我梦想有个长假好让我有更多的时间从事我的业余爱好。
dream of / about
梦想；想象
,其后接名词、代词或动词 _ing 形式。
Can you offer me some suggestions ?
：勾股定理。
勾股定理体现了直角三角形的三边关系：直角三角形中两条直角边的平方和等于斜边的平方。这里老师有一个感兴趣的问题有待 于解决，不知大 家有没有想过：把这 个定理反过来说：如果一个三角形有两边平
一企业出口的某商品价格用人民币表示为元，欧元对人民币的汇率为：，如果后来国内物价上涨了%，且人民币对欧元升值%，其他条件不变，按照等价交换原则，甲商品用欧元标价，其价格则为：A欧元B欧元C欧元D欧元“茅台酒
必周而均。使侃与贼言曰：“项城父老，义不为贼矣，皆悉力守死。得吾城不足以威，不如亟去，徒失利，无益也。”贼皆笑。有蜚箭集于侃之手，侃伤而归。杨氏责之曰；“君不在，则人谁肯固矣！与其死于城上，不犹愈于家
eoftheworld'smostimportantbusinesscentersInfact,eachyearthecitygetsitsmoneymainlyfrombusiness,notoilRecentlyDubaihasattractedmoreandmorevisitorsfromabroadTheycometorelaxonitsbeaches,andeveryyear,milli
数为k的轻质弹簧连接，现对B施加一水平向右的推力F使A、B均静止在斜面上，此时弹簧的长度为l，则下列说法正确的是()A推力F的大小为mg，弹簧的原长为mglk?B若推力作用在A上，则F=mg，此时弹簧的长度为mglk?C作用在B
/FileRoot3//d2b92b8b-1be5-4b4c-97a8-644afdf9242a/D2B92B8B-1BE5-4B4C-97A8-644AFDF9242A1.swf
/FileRoot3//d2b92b8b-1be5-4b4c-97a8-644afdf9242a/D2B92B8B-1BE5-4B4C-97A8-644AFDF9242A2.swf
/FileRoot3//d2b92b8b-1be5-4b4c-97a8-644afdf9242a/D2B92B8B-1BE5-4B4C-97A8-644AFDF9242A3.swf
/FileRoot3//d2b92b8b-1be5-4b4c-97a8-644afdf9242a/D2B92B8B-1BE5-4B4C-97A8-644AFDF9242A4.swf