要好好学国语作文

1.在三角形ABC中,AB=c,BC=a,CA=b,AD是角平分线,I是内心,则AI/ID等于 （）A.b+c/a B.a+b/c C.a/b+c D.b/a+c2.如图,已知三角形ABC中,AE:EB=1:3,BD:DC=2:1,AD与CE相交于点F,则EF/FC+AF/FD （）A.1/2 B.1 C.3/2 D.2 （ ）的话语 填词语 急求英语外研社版Module1 Travel的单词下册的 用单词的适当形式填空：Hobbies can help people _____（relax） after the daily work. 外研版高一必修一英语module1单词精解 初三下英语书外研版第2模块的单词要英标 中文 词性 请马上回答 求外语教育与研究出版社初中三年级上册英语module1单词表外语教研社的,新标准的 zoos are the only places that some kinds of animals live 小孩子该怎么记汉字 孩子怎么样快速记住汉字字形 怎样才能让小孩快速的记住字 怎么扭魔方 6个面! 已知菱形ABCD边长是6,E是AD边上一点,DE=3,连结BE交对角线AC于M,求MC：AM的值是（ ）.不用重心及相似原理. I think Hangzhou is a good place ------ 填 to live in 还是.I still remember the park ---- we first met .(填 that ,which ,where ,when )怎么区分这四个词.望高手速回. I miss the days ___ I spent with you during last summer.The answer is when or that?此处到底填哪个词啊? I will rember the day that I spent together with you.麻烦翻译一下.急.这里面有错的单词或者语法吗 It was __________ last week that I got into touch with him.until till not until by 选哪个 do you think your hometown is a good place for a young person to live给两句以上的英文的回答, No one can call back yesterday是什么意思如有能力,小弟还有几道题：When one is about to act,he must reason first. 选择：That unforgettable ball was the last happy moment____I enjoy myself.A.whenB.thatC.whichD.where no one can call back yesterday的意思 No one can caiI back yesterday_ 怎样才能把魔方扭回六面一色?魔方好难学啊,我才只会一面一层! Last Day, Last Night 歌词 call back是call you back 还是call back you 还有这句 i will call back after dinner 为什麼you被隐藏了 如果要加个you 加哪呢 也就是说 you加中间或後面有分别吗 call sb back（回电话）后加什么?call sb back后是加人还是加电话号码?求英语高手回答（最好有例子) 有一门都可以打出来，我觉的好可以多给分 ,要初一下学期的 the last the day before last 如题 The last night Last Last Saturday wasTree Planting Day.的汉语意思是? 什么情况下用动词不定式,即to加动词原形?