求曲线y=3x2在(2，12)处的切线方程

烤漆房除了用过滤棉过滤空气外,能用什么可以替代过滤棉 那个牌子的空气过滤棉比较好 It starts usually in iate March or early April and the Easter holiday is Friday的中文意思 Easter Day always falls on a Sunday between 22 March and 25 April.It falls on a d___date each year首字母填空 Easter must be celebrated on a Sunday between the dates of March 22 and April 25.中的dates of March 22 and April 25可不可以写成dates of 22rd of March and 25th df April? to checkers jim with likes his play uncle连词成句 ()My cousin_____with me on Sunday.a.likes play()My cousin_____with me on Sunday.a.likes play b.enjoys playing c.like playing d.enjoys to play()Are they good at _________?a.draw b.to draw c.draws d.drawing I like monkeys and pandas.(改为一般疑问句） This book is __i want to have.用that还是what?还有整句话的句子成分 分析句子成分 In this book,I want to talk about the expression for love that are in my English songsIn this book,I want to talk about the expression for love that are in my English songs.分析这个句子的主语谓语宾语从句等= =. I want to ____ this book for a month.A.borrowB.keepC.lendD.get这4个词的详细用法,谢谢 I want to see this film.(划线部分在this) The two are at home now.family or families The family are all at home中文意思是什么? april 29.2011前面加什么单词【at in on by】 the rest of family are home 的译文 IN/ON everning of April 4th 就是OF结构的具体某天上午下午是用IN还是用ON? like climb the tree (该否定句）.（一般疑问句,肯定回答,否定回答）划线提问--climb th climb the tree (该否定句）.（一般疑问句,肯定回答,否定回答）划线提问--climb the tre划线提问--climb the tree 改写句子（否定句/一般疑问句） 1 Tim can climb the tree.2 He likes beef 3They like tea4 She wants suger5There is a cup on the table6 He is climbing the tree Pandas can climb the tree 一般疑问句 we are very happy.意思 we are very happy 改成一般疑问句是什么 we are all very happy改为一般过去时 she finds interesting to playing with this doga.that b.it c.one d.this she finds ____intersting to play with this dog .我总觉得空中应填it is,但答案是只填it,一个帮去解释我总觉得空中应填it is,但答案是只填it,一个帮我解释一下为什么不能真it is. 关于高中概率的题目请问在算各种题目的概率是,什么时候概率是相加什么时候是相乘,并且在有些题目中怎么区分情况分分开,比如抓到和一个白球,一个白球和一个红球一不一样 高中概率题目一个袋装有黑球白球共9个,从中任意取3个,记随机变量X为取出的白球的个数,已知P(X=3)=5/21. 求白球个数. 求随机变量X分布列和数学期望 I wil always I love you是啥意思 28课《我的舞台》第7自然段的动作词语体现了什么? Could you please和 Could I please 句型Could you please.5个 Could I please 3个 Could_______Mike,please?Don't read ____It's bad for you eyes.It is e___pecil I will____with MikeCould_______Mike,please?Don't read ____It's bad for you eyes.It is e___pecil.I will____with Mike this week.(1)white (2)play cards (3)in bed (4)speak 这