嗤的意思

区分几个WORDS AND EXPRESSIONs.1.electric 和 electrical.有什么区别.分别用于哪些词组.2.有几个长得比较像content的词.有哪些.中文是什么. 求环保作文300字的 求作文 环保作文300字急啊 已知向量a,b,满足|a|=1,|b|=1,|ka+b|=根号3|a-kb|.k＞01.用k表示向量a×b,并求向量a,b的夹角的最大值2.如果,a∥b,求实数K的值 已知向量a,b满足b|=1,且|ka+b|=√3|a-kb|(k>0),令f(k)=a*b （1）求f(k)=a*b（用k表示）（2）当k>o时,f（k）≥x^2-2tx-1/2对任意的t∈{-1,1}恒成立,求实数x的取值范围太深奥的我看不懂 useful expressions是什么意思 expressions是什么意思 如果英语读后感有useful expressions.那就是要写什么? 一道关于英语阅读提的问题如果阅读题中有一道题是What would be the best title for the passage?这个问题是要选概括文章主旨的题目还是要选揭示文章哲理的题目?谢谢! useful什么意思 怎样保护稀有动物? 如何保护国家稀有动物 what's wrong with you I've got a stomach ache.我女儿的作业 Never be happy with what you've got翻译 杨丽萍表演雀之灵时她的手应该怎么形容? What is wrong with you?I've got a baclache.I'm ---------------- to hear that求线上的地方填什么 Hello!How are you?I'm( ),what's( )with you?I've got( )cold.I'm( )to( ).Why( )you go to see the( I will.( )you!Goodbye!Goodbye! -What the matter with you.Tom?-Oh.( )Maybe I've got a cold.翻译和填空? never mind,not at all,it doesn't matter ,that's OK/all right/right 的区别 辨析not at all,that's all right 和never mind? 八上英语阅读提 never mind That's all right用法 区别 that's OK/all right/right ,Not at all,it doesn't matter ,never mind分别用于什么回答? That's all right和Never mind有什么区别么 请推荐一些类似《I LOVE YOU ALL THE WAY》这种优雅类型的英文歌只要名字就行了, 求《傅雷家书》、《名人传》各5篇读后感（300字） 明天就反校交作业了 英语翻译and 1,and 2 why don't u leave me when i really need me ,myself and I ,baby i don't want u to change my mind ah ah I forget this forget about a night so wonderful so mense Stiring ur finger in my pie ah but...heat it up don't heat it up i 英语翻译and 1,and 2 why don't u leave me when i really need me ,myself and I ,baby i don't want u to change my mind ah ah I forget this forget about a night so wonderful so mense Stiring ur finger in my pie ah but...heat it up don't heat it up i 一道高数题,利用单调有界准则证明数列Xn=1/(3+1)+1/(3^2+1)+……+1/(3^n+1)收敛. 读名人传有感800字 求《名人传》的读后感,800字以上, That's ok与that's all right的区别这两个词组似乎都可以回答I'm sorry------我追加100分（也可能200分}！