七年级上数学辅导

写字小能手作文 我身边的小能手作文 热力膨胀阀按使用条件分哪两种?它们在结构上有什么区别?有于什么场合? 3天后开学,一样作业都没完成又补不完.怎么办! her,Mr liu,doesn't,why,like连词成句是一个问句 her Mr Simth doesn't why like组成一句话 今天就开学了,我的作业还一点也没做,现补是来不及了,怎么办 快要开学了,我还有很多作业没作,怎样快速补作业? 马上就要开学了,我还有很多的作业没写完,所以这几天都在家中补作业,没怎么来上 小麦的出粉率是85%,面粉加工厂运进小麦4吨,加工成面粉后,每袋装25千克,可以装多少袋 一个食品加工厂平均每天大约用310千克面粉,如果每袋面粉重25千克,400袋面粉够用30天吗 (我懒的打大括号了,就用普通括号代替)用描述法表示的集合(y|y=-x方+2x,x∈R)可简化为______答案是(y|y≤1)为什么呢? Today is a blue shirt and red tie day Please give the magazine to ____(she). Amy isn't here.She_(return)home. The magazine isn't ____(she).. 蒸发器回气口温度为5度,压力表测得压力所对应的温度为-10度,热力膨胀阀如何调整? 中央空调从热力膨胀阀到蒸发器到压缩机回气管都结冰是什么原因 DNA聚合酶在哪合成的 A:I have some clothes here.Whose are they?Look!Here's a blue sweater.Is thisA:I have some clothes here.Whose are they?Look!Here's a blue sweater.Is this yours,Ann?B:No,it's not mine.Mine is black.I think it's Jim's.C:Yes,it's mine,Mr.Smith.A:Here you A:I have some clothes here.Whose are they?Look!Here's a blue sweater.Is this yours,Ann?B:No,it's not mine.Mine is black.I think it's Jim's.C:Yes,it's mine,Mr.Smith.A:Here you are,Jim.You must look after your things!Now,this blouse,whose is this white After he ____(get)home,he began to cook meals As soon as he arrived at home ,he began to do the homework.同义句._____ _____ ______home,.Upon ______ ______ ______,._____ _____ he arrived at home ,... 三年之痛,七年之痒的由来? 胰岛素从合成至出细胞要经过几层膜?如题.看到有人说是0层.不过没有确切的解释. 胰岛素是不是活细胞 为什么是三年之痛,七年之痒. 物体受重力的情况请详细说明一个物体在地球表面,近地空间,运动或不运动时的受重力与万有引力的关系,1L,你就不懂。g在地球表面的不同位置取值都不同的，我就是在问mg等于什么，你等于 newspaper可数吗? 一个物体在不受重力的情况下的运动状态是放在地上的 好灰纸板的厂家是哪个? 消石灰在空气中的现象是怎样的