数学符号△b平方－4ac

名人珍惜时间的例子 求英语周报2010——2011学年下学期七年级下册27、29、31期答案 翻译：Well begun is half done. “Well begue is half done”翻译成汉语是什么? 以林黛玉的口吻写一篇林黛玉进贾府的作文 500字 英语翻译five-day forecasts today are as good as two-day forecasts were about twenty years ago 请问do you think they were five如何翻译呢?为什么要用过去时态were? 大神教我到英语选择~When asked what they would volunteer to do,------said they were willing toWhen asked what they would volunteer to do,------said they were willing to do something they could.A.half of these B,hailf of which c,half of whom D 查找初中的课文童趣的字词解释 初中课文课文意思 童趣课文解释 有哪些语言是用字母的.? 我想要一个10个字母以上的女的英文名``最好好听点``回答滴话`请附带中文``谢谢`` 三打祝家庄故事简介 三打祝家庄的人物是谁? 三打祝家庄主要有哪些人 三打祝家庄的简介,谢谢600字 6学过的诗词中,描写友人送别有哪些, 王勃写的朋友分别时的诗词 三国演义是文言文还是白话文? 描写在西湖友人送别的诗词,在西湖,送别哦 唐代大诗人李白曾经在 送别友人 ,并写下了著名的诗词句 On the Importance of the Interaction Between Teachers and Students in the English Classroom Teachin作为一篇论文,提纲应该是怎么样的? 以how to promote the relationship between the students and teachers为题的作文.4级以下水准 为什么说“汉字”是音节的表意文字 为什么说汉字是表意文字 l为什么说汉字是表意文字? 汉字长期停留在表意文字阶段的原因是? 描写小三峡的作文400字或者是词语、句子、段落. 健康生活的作文怎么写. 汉语中动词前加“有”构成完成时的语法现象这种语法结构在网络上见到的越来越普遍了：诸如我有看见,我有听到,我有做过……这是哪个方言的特殊语法结构还是因为英语大行其道造成的. 描写春的词语（最好是成语）20个,描写春的诗句10句,描写春的段落1段（要短小精悍的,100字以内）必有重赏