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函数y=x^2-3x+1在M（1,-1）处的切线的斜率为公式 求函数y=x^3+3x^2-5在x=-1切线的斜率 帮我想下这个的言外之意马克·吐温曾因为规劝一个乡绅不要在糟蹋文学而被关进牛棚.后来,这个乡绅又请马克·吐温来指点他的新作.马克·吐温翻阅了一下,二话没说,直往牛棚里跑.乡绅急切 选词编故事（400字左右）反思抱歉.抱歉.惭愧.内疚.忐忑不安.如释重负 冰释前嫌 “我好想怕赶不上什么事情似的” 这句话有甚么言外之意?作者这时的心情怎样? 善待动物的广告词有什么 japanese anemone是什么意思 心殇是什么意思吗 殇的词语.比如殇心 心殇是什么意思 雅思作文一对一效果怎么样要去哪家? 雅思作文,请高手指导...1. More and more measures are being taken by the government to improve the stagnant economy conditions in the world. Some people believe such a practice is simply waste of money and energy. What is your opinion?Faced wi 雅思作文高手进 急求指导不到十天考雅思了,大作文没底,希望雅思高手能指点其中错误并给出大概分数谢谢!（占用了您宝贵的几分钟,再次感谢!p.s.时间紧迫,个别打错字望见谅）还有一个问 该怎么样求双曲线的切线啊? The girls should wear pink blouse every day.（The girls划线） 这种求极限类型的题怎么做 蜻蜓生活在哪? 蜻蜓的生活? 几个英语改错.1 The temperature dropped abrupt.2 Mr.Lin is trying a new method to language teaching3 You switch the radio on pressing this button4 Do you know how to set out going on this work 5 Being prepared for the match,the players were in h 蜻蜓适合生活在哪里? 关于几个英语改错Dear rutb,We had a wonderful vacation so far.the weather 1._______has been perfect,and we have enjoyed us thoroughly2._______We have gone fishing and swim almost every day.But3._______tomorrow we are going to do anything diffe 蜻蜓居住在哪儿? 蜻蜓怎么在酷暑生活 心若豁达,殇又何妨?心似成殇,何惧殇? 殇心两字是啥意思 双曲线的切线会不会与两条曲线都相切? 以自信为主题的作文 《悯农》（唐李绅）译成现代文 如图在平面直角坐标系中,四边形OABC是矩形,且B点的坐标是(2,5),抛物线y=ax2随顶点P沿折线O-A-B-C运动, 夕阳和蓝天连在了一起 用英语翻译大神必好评! 英语翻译：小小的我,幻想,将来和真正的心爱的人在沙滩,山顶,等地方,看日落与夕阳!是的,这真的很美好 用英语翻译下列词组：很好玩 醒着 迄今为止 在落日的余晖下