尽最大努力做最坏打算

1.若3-x和2x+5互为相反数,则x=2.当x=（）时,代数式2x-1/5的值是-3急哟 当x=___时,2x-1与2x／3-5 互为相反数, 阑珊的意思是什么? 同上,灯火阑珊 劳其筋骨,饿其体肤, 苦其心志,劳其筋骨,饿其体肤, 饿其体肤,空乏其身 怎么停顿 如图,AB为圆O的直径,点C在圆O上,角BAC的平分线交BC于D,交圆O于E,AC=6,AB=8,求CE的长. 已知α ,β,γ为锐角,tanα /2=tan^2( γ/2),2tanβ=tan γ,求证,α β成等差数列 γ 生于忧患,死于安乐中空乏其身的身是什么意思? 故天将降大任于斯人也,必先苦其心志,劳其筋骨,饿其体肤,空乏其身...的全文是什么啊只要语文书上给的 单句改错 英语牛人快来!1 when do you think will he come back?2 the cause for the accident is still unknown.3 he hasn't been to LONDON,so have i.4 she has such much work to do that she can't go shopping for herself.5 the police are hunting a 1.I am not go tu school every day.2.We playing basketball in the afternoon.3.You are sing very well.4.they not have dinner at home. 天降将大任于斯人也,必先苦其心志,劳其筋骨,饿其体肤这句话什么意思 Who do you think you are?It’s none of your business. 英语句子改错 快```一个have you got important anything to tell me?不止一个错误the girl can sings best than others in our class.I want to buy many cloth from the market to make some cloths.this movie is much exciting than yout expect. None of the secrets of success will work unless you do. 她们把小猴子送回去了 用英语怎么说 故天将降大任于斯人也,必先苦其心志,劳其筋骨,饿其体肤,空乏其身的意思是什么 A.B.C为锐角,且tan=tan的三次方,tanC=2tanB,求证：A.B.C成等差数列 设α,β,r 是锐角,且tan(α/2)=(tan(r/2))^3,tanβ=1/2tanr,求证,α,β,r,成等差数列 已知A1,A2,A3是抛物线y=½x²上的三点A1B1,A2B2,A3B3,分别垂直于X轴,垂足为B1,B2,B3,直线A2B2交线段A1A3于点C,（1）如图 （2）A1,A2,A3三点的横坐标依次为1,2,3,线段CA2的长（2）如图（2）若将抛物线Y 英语改错（下面一段话） well,generally I would like to search for informations or novels that i like from the Internet.From my personal consideration,viewing books or novels on the Internet is not only convenient but saving as well.As you c 什么东西放进去是活的拿出来是死的 脑筋急转弯 求英文改错下面一段话Nowadays,internet has penetrated every corner of people’s daily life.People are more likely to establish various relati-onships online rather than in their real life,one of them iscalled cyber love which has become a c Golden union可以翻译成中文的哪些词汇? 英语翻译那个有的意思不对的One for all,one for all)(It's all it's all for one)Let's start a union,calling every humanIt's one for all and all for oneLet's live in unison,calling every citizenIt's one for all and all for oneWe don't want w 容易死亡或变质的货物,多采用什么方式来运输 49题? 在食品的运输进程中易产生甚么问题 "慷慨赴死易, 求梁实秋的《雅舍小品》 发到：feigongling@163.com