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集合｛（x,y)/y=x^2;,x∈R｝的几何意义 y+3/x+2的几何意义是什么如题 21．The girl in the photo wears a broad smile,her wavy hair _______ over her shoulders． A）flows B）flow C）flowing D）flowed 24．John's outstanding performance in the competition proved that he was a _______ winner． A）worthwhile B）wort excel中统计班级人数表中有人数,姓名,班级,3列,姓名班级都以输入好,在人数一列中,用公式填充1,2,3.一直到班级最大人数.如01班34人,则A列中填充1到34,班级总数为12 在excel中如何设计一个系统自动统计各科前20名各班占的人数,我想要的为效果：我有很多班,但总数又不能超过20人,可有时并列19名有5人,这就是说到20人还差1人,这1人又按所点的比例分配到各 My brother often (does homework) at home .就括号部分提问 My brother always does his homework (at home)画（）部分提问 _ _your brother always_his homework 8/（1/2+1/4）8除以括号2分之一加4分之一,怎么算啊能简算吗 But my brother does.主谓结构? 1、—I am sorry.I can’t go to the party—( B —My friends is illA、What’s theproblem B、How come 2、So far,he musthave achieved is goal,C A、mustn’the B、hasn’t he C、didn’t he D、doesn’t he 68.（2012～2013学年度苏锡常镇四市高三教学情况调研（二）,30）We should realize the fact that when you graduate from university,you are still not prepared for the possible situations ________ we may face in the working world.A.wh 一道高中英语单选题 请给出答案并解析Have you seen the opera （ ） in the People's Theatre?--Not yet,but I have bought a ticket for tomorrow.A perform B to be performed C performing D being ferformed —what happened to your shoes?—they want_______A.to mend B.being mendedC.mendingD.mendedA为什么没有可能？ 1.The government has taken measures to ____ the high prices of daily goods to keep the market stable.A.take down B.bring down C.hand down D.tear down 2.The fact that so many people still smoke in public places ___that we may need a nationwide campaig 英语：by around eight o'clock是否等于at about eight o'clock?英语：by around eight o'clock是否等于at about eight o'clock? whattimeisit?it`s______ eight o` clock下面有四个选项 .A．a B .o n C.in D.around --What's the time ---It's ____ eight o'clock .A.at B.on C.in D.around 到底选什么?希望得到有力的解释和理由! 爱情公寓四中有一节里胡一菲骂曾小贤说的那句关于剑的话是什么?我只记得这一部分了：中国那么多兵器你学什么不好,偏偏学剑,上剑不学学下剑,下剑学完学什么,还达到了人剑和一的境界, 爱情公寓3中胡一菲说曾小贤是弯的是什么意思 推荐个最好的新概念英语视频教学 填介词!1.the shop isn t open____eight o'clock o\'clock是什么意思 we have english at eight o'clock否定回答 It's eight o'clock.We're late___school.Let's hurry.填介词 i have ___ at eight o'clock and english ___ 8:50 怎么填? 碳的分子式怎么写? “碳”的分子式是?是“足球烯” 碳的分子式是什么 分子式为C3H6有机物最多存在3个C—C单键,与C4H10的碳碳单键数相同 具体是什么 某链烃分子中含一个C=C,其他碳均以单键相连,则其分子式可能是A C2H6 B C3H6 C C3H8 D C4H6 一道高中英语单选题求详解The drilling in Antarctica dragged on slowiy because of lack of money ,equipment breakdowns,environmental______and severe coldA concernsB assumptionC occupationsD ignorance为什么选A,然后翻译下,没看懂 A.分子式为C3H6有机物最多存在3个C—C单键,与C4H10的碳碳单键数相同这句话对么