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y=g(x+at)+f(x-at),证明y对于t的二次导数等于y对于x的二次导数的a^2倍 我对“绿色奥运”的理解是什么? 气者,理之所依也 这句话是谁讲的? 气者,理之依也, 四年级观察绿豆作文300字 观察作文 300字, 观察作文,300字 四年级观察作文300字 奥林匹克运动会的含义是什么?这届奥运会有怎么样的影响力?它与我们每个人又有怎样的联系?一楼的,你在回答我的问题?后面那句话在回答那个问题啊? 观察作文300字四年级 奥运会是什么意思啊 我理解“奥运精神的内涵”例如：中国选手刘翔在雅典奥运会男子110米栏决赛中以12秒91获得金牌这个成绩打破了美国选手阿兰·约翰逊的十二秒96的奥运会记录 23个声母有哪些谁知道 23个声母是什么 23个声母怎么写啊 写出23声母 Rearrange the words to form correct sentences:1.are,what,inportant,you,to,know,the,penfriend,most,want,things.about,your(?)2.Beijing,going,you,with,to,travel,who,is,to(?) Read and rearrange the sentences1)Where's the bus stop?2)Thank you very much.Goodbye!3)Which bus can I take 4)Bye!5)You can get there by bus 6)You can take the No.16 bus.7)Excuse me,how can I get to zoo,please?8)Go straight and turn right.You can see 南极大陆的冰山融化给海岸带来的影响有?A.咸潮发生频率增加B.中纬度地区气候变的干燥C.生物物种增加D.底下水位降低使海水倒灌 奥运会的意义是什么? 翻译“Listen and tick” 奥运会代表什么意思? read the sentence ( )your students( )listen and repeatRead the sentence so that your students can listen and repeat帮忙填写括号里的嗷嗷嗷，下面是例句，上面改成和它意思一样的 中国奥运会精神的内涵是什么 rearrange the sentences ang make a dialogue 含有相同声母的词语 Rearrange the following sentences to make a converstion.a.It's Keiko.b.Where's she from?c.She is my new pen pal.d.So she lives in Tokyo and speaks Japanese.e.What's her name?f.Who's the girl in the picture,Cathy?g.That's right.h.She's from Japan.1.( 声母相同的词语 Rearrange the following sentences so that they make a readable passage.1.The professor wanted to find out how long it would take the monkey to find the food.2.A university professor made several tests with different animals.3.In one test the professo 两个声母相同的词语有哪些?如：辉煌.声母都是h please make a conversation with the (follow) sentences还有My uncle in London （send） a birthday present yesterday. 一辆火车走200m,前100m用了12s,后100m用了10s,具体啥公式,清楚一点,