fxx22x4单调性

怎么证明直角三角形全等的定理 HL 证明三角形全等HL定理是什么意思 求初一数理报第10期的答案 如何正确运用三角形全等定律去证明三角形全等 求20道英语短文改错题.急求各位帮忙找20道英语短文改错题. Don't speak Chinese in an english class.句意相同You__ __ __ __speak chinese in.注意有4个空哦 the students ( )english in class(speak) the student ( )chinese after class(speak) the speak chinese in an english class.(改成否定句) They speak Chinese in an English class改成否定句 Students enjoy _____ (speak) English in class?为什么speak+ing形式?这个句子是现在进行时吗 一个多位数,省略万位后面的尾数约是58万,这个数在省略之前最小是( ),最大是( ). 一个多位数,省略万位后面的尾数约是5万,这个多位数最大是多少,最小是多少? 写一篇一家去年去北京游玩的英语作文,要求包含的问题1.Where did you go 2,Who did you go with3,How was the weather there 4,What did you do there where do you go ?go后不加to是不是因为where是疑问副词,副词前边不用介词to?请回答是与不是.谢谢 Where did you go with Mr.Wang yesterday?Where were you with Mr.Wang yesterday?这两句话的语法都对吗?意思有什么差别 求英语作文：1.where did you go?2:who did you go with?3:how was the weather there?4:what did do there? can you speak chinese?sorry l Can speak a little English --Sorry,I can't speak Chinese.--________.I'll teach you.--Sorry,I can't speak Chinese.--________.I'll teach you.A.That's great B.Never mindC.Sound good D.That's bad请问,为什么? dnJJjjsHPNSQ这是同学告诉我的. 求解.我女朋友给我一串英文字母让我猜.猜到就有奖.但是我完全看不懂.求大神帮忙.I D N W T M S这是那字母.帮帮忙把. 一个多位数,省略万位后面的尾数约是5万,这个数最大是多少? 一个多位数,省略万位后面的尾数约是一万,这个多位数最大是多少,最小是多少?最大是14999,最小是5000 还是10000,还是10001 为什么?5000不是四舍五入变成1万? go come agree listen 是不是在任何情况下接宾语都要加介词吖 句子能做介词的宾语吗?句子在宾语的位置上就是宾语从句,既然一个句子可以做及物动词的宾语,那能不能做介词的宾语呢? 英语中 现在分词的被动形式和过去分词作状语的时候有什么区别举个例子 1being followed by a dog,iquickened my pace.2 followed by a dog,i quickened my pace.区别是什么呢 有照到的全都要做哦. 有关于考研初阶段数学复习参考书选择的问题1.同济高数6版和5版比哪个更合适,或者说没啥区别?（5版现在比6版难搞到）2.线性代数也是用同济工程数学线代吗?请直接回答我的问题,广告请绕 一个多位数,省略万位后面的尾数约是6万,估计这个多位数在省略前最大只能是（）,最小只能是（）因为x〉y（x、y都是非0自然数）,所以10÷x分之1〉10÷y分之1.（对还是错） 1路车和2路车同时 帮帮小M找一找,例如 的题,谁有哈*_* 会有天使保佑你哦~·_· A:Hey,Linda!Do you know that man with glasses.B:Yes,he's my uncle,Frank.A:( B:He's a reporter.He works in the TV station in our city.A:Wow,that's great.( B:I like playing piano.So l want to be a pianist.A:( B:I'm hgoing to practice piano every day.( do you know that man with glasses?把with换成wear行吗?如果不行为什么? Do you know that [chatting] with wise men improves your mind 为什么用chatting 不用chat chats chatted 详细些我英语不好