against+the+background

@澹肾1165:请问a ribbon against the hood为什么要用against呢?谢谢. -
孟景17232038020…… 由于这不是一个固定词组,离开了语境(上下文)还真没法回答你的问题.hood 可以是套头帽,也可以是汽车引擎盖,还可以指动物之类头顶上的毛发.再加上你...

@澹肾1165:英语作文how+to+guard+against+thecampus+thefts -
孟景17232038020…… Enhance Awareness to Guard against Campus Thefts<br> “If you don't want to wake up and find you have no pants to wear, you'd better put them on in sleep,” goes a popular joke among students. Obviously, campus thefts have become ...

@澹肾1165:leaning+against+the+wind是什么意思 -
孟景17232038020…… leaning against the wind 逆风而行 双语对照 词典结果:leaning against the wind [英][ˈli:nɪŋ əˈɡenst ðə wind][美][ˈlinɪŋ əˈɡenst ði wɪnd] 凭借风势; 例句:1.In times of asset-market froth, I favour the "leaning against the wind" ...

@澹肾1165:求词歌的歌名.谢谢 http://tieba.baidu.com/f?kz=1152254959 -
孟景17232038020…… Simple Plan - Me Against The World 试听:http://v.youku.com/v_show/id_XMjYxNTc1ODg=.html 下载:http://cgi.music.soso.com/fcgi-bin/m.q?w=Simple+Plan-+Me+Against+The+World&p=1&source=1&t=1

@澹肾1165:代数式数学题(完全对称式)若将代数式中的任意两个字母交换,代数式不变,则称这个代数式为完全代数式,如a+b+c就是完全对称式.下列三个代数式:①(a... - 作业帮
孟景17232038020…… [答案] ①②是③不是 ①(a-b)²=a²+b²-2ab 对调后(b-a)²=b²+a²-2ab ②ab+bc+ca ab对调后ba+ac+cb\ bc对调后ac+cb+ba- 都与原式一样 ac对调后cb+ba+ac/ ③a²b+b²c+c²a 若只ab对调后b²a+a²c+c²b 与原式不同,只在特殊情况下(ab相同...

@澹肾1165:The picture looks good - - B- - that light wall. A.except B.against 为什么选B -
孟景17232038020…… against 是相对的意思,所以此处的意思是那幅画跟那面浅色的墙对比起来看起来很美.

@澹肾1165:A+B和BA都有意义的充要条件是:矩阵A和B是 - 上学吧普法考试
孟景17232038020…… E.T..KatyPerry的歌完整版前面是男声..几句过后就是女声了

@澹肾1165:设A,B为两个任意事件,则下列结论中一定正确的是( )(注:A+B=A∪B)A.(A+B) - B=AB.A - B=AC.(A -
孟景17232038020…… 由题意可知:A+B=A∪B, (A+B)-B=A∪B-B=A-A∩B=A-AB,故选项A错误, A-B=A-A∩B=A-AB,故选项B错误, (A-B)+B=A-A∩B+B=A+B,故选项C正确, A+AB=A,故选项D错误, 综上所述,故选择:C.

@澹肾1165:已知a+b=2,ab= - 1,则3a+ab+3b=();a的平方+b的平方= -
孟景17232038020…… 展开全部3a+ab+3b=()=3(a+b)+ab=6-1=5 ;a的平方+b的平方=(a+b)²-2ab=4+2=6

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