对角线为0的矩阵

It's like anything.翻译 英语翻译到底准确的是什么? 英语翻译当和老外聊天的时候发现口语跟不上 于是想说“不如我们还是用MSN打字聊天吧,我口语有点跟不上”帮我翻译下双引号里的句子 "Why she angry?" "Because he _____ at he just now.有四个选项：A.did… get,shouted B.has…got…shoutedC.did… get… has shouted D.has…got…has shouted I think that I committed a___in asking her because she seemed very upset by my question,A.blunderB.revengeC.reproachD.scandal he asks his mother to buy one for him,（but） she doesn't agerr 括号里有这几个选项：but because so括号里有这几个选项：but because and so You need to write to him的同意句 if you need him,I give you the key这个句子语法对么? you must hurry to meet him,()选哪个?a the sooner is the better b the earlier the betterc sooner or laterd later is better为什么啊 理由 be pleasant at还是with sth you may need to address.怎么翻译?其中address什么意思? 英语翻译I think you may have everything on hand that we don’t need to bother then. 英语翻译因为见过“Should you have any questions"这种用法 表示“如果您有任何问题” ,所以想到了用“May you need to know,” 来表示“可能您需要知道”.整句话是想说“可能您需要知道,我明天就要 you may take ___you needall whatthat all that which 选一选(在括号里填上字母)要使算式1\2+1\4+1\6+1\8+1\10+1\12的和等于1,应该去掉( )A.1\4和1\8 B.1\4和1\12 C.1\8和1\10 好心人翻译一下!好的话追加100! You don't need_____show your_____me.A、to;teeth toB、to;tooths forC、/;teeth toD、/;teeth for He'll show you his wood if you show him your hole! show your you him can mascot 怎样连词成句 你最近一个月有给我发邮件吗?（这句翻译成英文） it is time for lunch .-Well,that is all for today.let`s discuss the problem_____.A.sooner or later B.sometimes C.later on D.first 郦道元的的译文! 名词性从句10.I am sure ____ he said is true.A.thatB.about thatC.of thatD.that whatwhy Trust me,I am sure __ he said is true.这里的空格可以用that吗,为什么? 英语翻译 美的意思是什么 丑与美的含义 有了集合概念后数学会发生什么变化? You don't need to p___ him for his help(根据首字母提示填空) you don't need to help him p---the banana .He's old e----.let him do it himself 关于数学集合的几道问题,教教我吧,1.用描述法表示下列集合1)绝对值小于4的所有实数组成的集合2)y轴上的所有点做成的集合2.用列举发表示下列集合1){x|-2/3 数学中的集合是什么时候开始教的?