桃花心木板书

:求含11的勾股数,先谢啦! at zhe back of 与behind区别?都是表示在……的后面.它们有什么区别? f(x)=lg(1+2^X+4^X x a)/3,当X∈（－∞,1〕时,f(X)有意义,求a的取值范围． 2x+1.5=4.3 5x-8=12.5 18+4x=21.6 be composed of 、consist of、be made up of 三者的区别我需要的是文字上的论述,不要一味的复制,我真心想弄懂这三者的区别 be composed of与consist of与be made up of三个词组都有由什么组成的意思,具体区别,用法是什么呢? 九百九十九又二十五分之二十四乘以负五怎么算 九百九十九又二十五分之二十四乘负五 consist of和 make up of在用法和意思上有什么不同?比如说什么有无被动.“被组成”“由什么构成”? make up of 和 consist of 的区别 make up of 和 consist of 的区别 是made consisted 抱歉 三分之二的负二次方是多少 函数y=根号[(1-sinX)／(1+sinX)]的周期 behind和at the back of的区别不是都表示在. behind 和at the back of 有什么区别? at the back of 和behind的区别? This is the house where he was born=This is the house in which he was born in =This is the house which he was born in Is this the house ____ Shakespeare was born Is this the house ____ Shakespeare was born A:at which B:which C:in which D:at where为什么?B 是怎么错的? is this the house in which shakespeare was born?中,应在in后面断句,还是in前面断句 This the house where he was born?再那里添in at the back of 和 at back of的不同点 in the front of 和 in front of的不同点 She was born in Suzhou ,in 1982.提问Suzhou,in 1982 at the back of与behind的区别 at the back of和behind有什么区别? didn't know _ was _I was bornI didn't know _ was _I was bornA.that,whenB.that,whatC.that,whereD.what,where我觉得A也可以选呢,想问问这里为什么不选A刚刚复查了新东方的为新概念2打造的全新全绎上,这道题没有抄错 急英语选择i ____in summer A.born B.was born C.have been born D.am born 英语选择题Gina was born __ 1999.Gina was born __ 1999.A.to B.on C.at D.in was怎么查字典没的呢是什么哦 还有象这种年是用哪个单词呢 我不是很理解 帮我出几道代数式求值的题!例：(3x-4y+2xy)-(2x-5y+5xy),其中x=-2,y=1.急用!能出几道就出几道! 以19开头的勾股数 13开头的一组勾股数 Does anyone know_?I hear that he was born in Sweden.B.when he was born D.wherehe comes from我选D,Why? 初一下册的平方差公式的题, 帮忙啦边长为a的正方形(a>1),一个边长增加1cm,另一个边长减少1cm,得到的矩形的面积与正方形面积比较,有没有发生变化?