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俄罗斯霸占了中国多少领土啊? 8cos(派/4+a)cos(派/4-a)=1,sin4平方a+cos4平方a=?我数学很差, 英语翻译Waves（波,波浪）are beautiful to look at,but they can destroy（破坏,毁坏）ships at sea,as well as houses and buildings near the shore.What causes waves?Most waves are caused by winds blowing over the surface of the water.The su 一小段英语翻译------------高手帮忙I came to study in the US last fall. My life had been quite simple since I arrived at Andover. Although I had quite a few extracurricular（课外）activities, I hadn’t taken any official leadership pos 英语翻译Simple behaviours,however,decrease it.Ninety-nine percent of the time,the unhappy person was never told about the issue before it got worse.Does the co-worker feel betrayed?I did when a peer went to my boss without giving me a chance to d 国本中学暑假作业38页 新叶阅读答案 江南实验中学初一新生科学暑假作业是什么?是《初中预备班》做打钩的题目还是全部做 诗经中哪些诗可以表现当时的社会状况 求几首写作者孤寂心情的古诗（最好能反映当时社会的黑暗）一首也行 有没有什么能够反映出当时唐朝人们生活或者社会情况的诗歌或者图画么? 诗歌 三原色反映了怎样的社会问题 俄罗斯究竞占了我国多少领土 《大卫科波菲尔》读后感急需!(^!^)/~ 《大卫 科波菲尔》读后感! And,whilst he fondly dreams that he is grasping at infinity,does he not feel compelled to return to a consciousness of his cold,monotonous existence?这句话如何理解?compelled这个单词是什么意思? 帮我翻译!SUNDAY CLASSES Kelly works very hard at her English.Besides the English classes at school,she has another language class on weekends.So every Sunday morning,she goes to a language school to inprove her English.The language school is very 俄罗斯总共占领中国多少领土 关于x的方程x^2 +ax+a-1=0,有异号的两个实根,求a的取值范围 方程x^2+ax+a-1=0有异号的两个根a的取值范围 关于x的方程x²+ax+a-1=0有两个异号实根,则a的取值范围是 廉政格言,写出出处和远作者 求廉政格言要求贴近生活,体现反腐倡廉主题,语言朴实精练,通俗易懂,创意新颖,寓意深刻,时代感强,每条字数在50字以内 廉洁的格言快!要在明天演讲 求2008年6月cet6真题卷一份, 初一自我介绍 250字我的性格比较开朗,文不要太吹 五年级下册英语教案 新课程五年级下册英语教案 就是新课程的那本 急、、、、、、、、 小学五年级英语下册第一单元第五课重点句是什么? 科普版小学五年级下册英语教案 这个电极方程式怎么写2 Al + 3 Ag2S + 6 H20 = 6 Ag + 2 Al(OH)3↓ + 3 H2S↑ 有那些有关廉洁的格言我想知道有关廉洁的格言~ 电极方程式 该怎么写 1.It was used for( )tea hot after it( ).A.keep,made.B.keeping,is made.C.keep,was made D.keep,was made.2.The policeman noticed a man( )into a house,A.break B.to break C.broke D.breaks3.His father's death( )him( )school.A.made,leave B.made,to leave C.m