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过一点有且只有一条直线与已知直线垂直,这句话是必须在同一平面内吗,如果不在同一平面内成立吗 在同一平面内,有a、b、c三条不同的直线 如果b垂直a,c垂直a,那么b、c平行,这句话对吗?如果b在直线a的上方,与a垂直,c在直线a的下方,与a垂直,而且c正好与直线b在同一条线上,那不就是相交了吗? 光年是长度单位还是速度单位啊,请讨论下 -a的绝对值等于-a的满足条件 对做好无机化学实验的建议 光年是长度单位还是时间单位?我记得是长度单位来着恒星年是啥? 设计实验：草酸含量的测定!试剂：只有NaOH(s) 临苯二甲酸氢钾 酚酞 8%草酸 我讨厌语文老师她整天在说那些无聊的东西,上课枯燥,还天天背默,而且起疑心重,这不今天我到隔壁班默写,默写完了要站起来,刚做动作,就说xxx你不要作弊,我无语的跟他解释,那是别人的书,又 我讨厌做作文,语文老师说写一篇中职生的苦与了,急求一篇《中职的苦与乐》,急 如何复习GRE句子填空题?求答案 新GRE句子填空题的形式有什么变化? 一道新gre句子填空题求解Although some censure became (BLANK1) during the 1980s,Dahl himself seems to support some of such earlier criticism.Although he (BLANK2) that some Western intellectuals demand more democracy from polyarchies than is p 新闻在写法上以什么为主?有时兼有什么和议论?记叙为主,有时兼有什么和议论?不是描写 为什么光年是长度单位? 光年为什么是长度单位? 怎么快速记下一篇英语课文我现在的英语辅导班老师很贱,每次都要求背课文,有的一整篇的也叫背,背不下来作业就双倍,恶心死了,我该怎么办啊(这次是六年级上册第31课)谁能教我怎么快速背 新闻的基本特征是? 几道GRE填空题 1.the challenge of interpreting fictional works written under politically repressive regimes lies in distinguishing what is ____to an author's beliefs,as opposed to what is____by political coercion.Acontradictory DconveyedBorganic 新闻事业的基本特征是2011年中央名族大学新闻学研究生考试的科目一的题目···谢谢大家·· 问几道GRE填空题1.The NationalArchives contain information so _____ that researchers have been known never topublish because they cannot bear to bring their studies to an end.E/A(A) divisive(B) seductive(C) selective(D) repetitive(E) resourceful 什么是消息的基本特征一句话,简洁明了. 请教一道GRE填空题For many young people during the Roaring Twenties,a disgust with the excesses of American culture_____a wanderlust to provoke an exodus abroad.C.reflectedD.combined with答案选的D,但我觉得C也可以啊,如果选C的话 危机事件基本特征是什么? 求问一道新gre填空题,后两空为什么这么填? 提问GRE填空题In recent decades,the idea that Cezanne influenced Cubism has beencaught in the ______ between art historians who credit Braque with itsinvention and those who ______ Picasso.AE/AFBlank (i)Blank (ii)A crossfireD dislikeB interplayE 让孩子远离网吧,健康成长,这是许多家长的心愿修改病句 gre 填空题Rhetoric often seems to----over reason in a heated debate,with both sides----in hyperbole.(A) cloud..subsiding (B) prevail..yielding(C) triumph..engaging(D) reverberate..clamoring(E) trample..tangling从那个over 可以把答案锁定 gre填空题For those Puritans who believed that ----obligations were imposed by divine will,the correct course of action was not withdrawal from the world but conscientious ---- of the duties of business.practical..mystificationinherent..manipulatio 举几个关于“英雄少年”的例子举两三个关于英雄少年的例子~ 一道GRE填空题~The ideas expressed in the art historian's book are more ____ than one would expect or the basis of her rather ___ treatment of her subject in the opening pages.A.compelling...intriguingB.accessible...reconditeC.hidebound...reactio 是GRE一道填空题as the creation of new knowledge through science has become institutionalized resistance to innovation has become less aggressive taking the form of inertia tather than direct attack.这句话怎么翻译? 向高手求助几道GRE填空题Even though they tended to be----strangers,fifteenth-century Europeans did not automatically associate----and danger.(A) trusting of..diversity)(B) haughty with..nonconformity(C) interested in..enmity(D) antagonistic