C
Didyouknowthatsomethingassimpleasthewallpaperonyourcomputercantellpeoplealotaboutyou?AccordingtoresearcherDonnaDawsonourcomputerssaysomethingaboutwhatwe’relikebecausetheyarepartofour“personalspace."
Apictureofachildorfamilyonthesceenoftenmeansthepersoncaresdeeplyabouttheirlovedones.Aphotoofthepersonsurroundedbyfriendsshowstheyvaluetheirpopularityandprobablyworkwellwithotherpeople.Ontheotherhandpicturesshowingexamplesofpastsuccesseslikewinningaprizemaymeanapersonisonlyinterestedinthemselves.
Picturesofnatureandnaturalscenerytellpeoplethatyouaredriventosucceedandusethepicturestorelaxandremovethepresswre(压力)inyourlife.Cityscapespicturesofcitiesortownsshowthatyouenjoytravelandadventure.Mostpeoplewithcityscapesastheirwallpaperareoptimistic(乐观的)，happypeoplewhofeelevenbetterthinkingabouttheplacestheyvevisitedorwanttovisit.
Picturesofanimalsshowthatyouareoptimisticandkind-hearted.Youareoftenhappyandyouenjoylifeandactyoung.Cartoons(漫画)ordrawingsshowthatyouareamultitaskersoniconewhodoesmanythingsatonce.Youh^vemanyresponsibilitiesbutyoudealwiththemwell.
That'sonereasqpyou!likehavingsomethingtosmileaboutwheftyoiilookatyourcomputerwallpaper.
Thenwhatdoesplainbluewallpapertellusaboutaperson?AccordingtoDawsonapersonwithplainbluewallpaperprobablyvaluestheirprivacyandkeepsworkfrombecomingtoopersonal.
29.Aprizephotoaswallpapersuggestssomeone
A.caresonlyabouthimselforherself
B.hasastrongwishtosucceed
C.isconfidentabouthimselforherself
D.worksverywellwithothers
30.Thosewholookonthebrightsideofthingsarelikelytohavewallpaperlike.
A.picturesofnatureandnaturalscenery
B.picturesshowingtheirpastsuccesses
C.cityviewsorpicturesofanimals
D.photosofstayingwithfriends
31.Whatcanbethebesttitleforthetext?
A.WheretoLookforYourComputerWallpaper
B.ComputerWallpaperShow
![【已知函数f（x）=x2+mx-4在区间[-2，1]上的两个端点处取得最大值和最小值．（1）求实数m的所有取值组成的集合A；（2）试写出f（x）在区间[-2，1]上的最大值g（m）；（3）设h（x）=-12x2+12x+7，令】](/UploadFile/wdimg/2071/3055300732/126/2987148627.jpg)
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