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19世纪中期世界出现了什么样的发展潮流 翻译英语；小男孩坐在他妈妈身边. 男孩的母亲是个老师用英语怎么翻译 如何在岩石圈循环图中区分变质岩和沉积岩,我感觉变质岩与沉积岩好像等价,但好多题中都只有一个答案. 地壳物质循环中变质岩和沉积岩可以互相转化吗? 作文：一句话的启示,书里的一句话的启示 弯头尺寸测量弯头从各个方位测量的厚度不一样,请问是取最大厚度,还是最小厚度? 90°弯头尺寸曲率半径我知道怎样算 但是弯头外径和内径指的是什么 如果我是一个男孩英文歌 铝铸件喷粉请问在喷粉的铝铸件上丝印红色油墨,烘干后为什么没有光泽? This is the hotel where they were staying.这就是他们当时住的旅店为什么where不换成that or which 欧洲西部的人口密集区与呈十字形排列? 铝合金喷塑后会不会氧化?继续 污水处理的电气控制系统设计翻译成英文污水处理的电气控制系统设计 论文标题 请问翻译成英文应该怎么说 家用电器 美语怎么说 关于铝合金喷塑问题请问现在有没有铝合金喷塑门窗?我觉得现在市面上的铝合金门窗的颜色太单调,如果为铝合金喷塑能不能做到,另外喷塑的缺点是什么?会不会脱落等, 铝合金压铸件,电泳着色都有什么颜色呢?能否和喷塑相比? 英语翻译中译英;1.煤气点不着2.花洒坏了3.花洒不出水4.厨房跳电了5.主卫射灯坏1只6.客厅坏2个灯7.换大门的电池8.修门锁 Is this hotel_____you said in your letter we were to stay?A.where B.which C.in that D.in which 选 6.Now we should the gap between the rich and the poor countries. A．shorten B．enlarge C．bridge D． Is this the hotel ____ you said we were to stay in the letter?A.where B.which C.in which D.in thatwhere可以吗？ the solution to narrow the gap between the poor and the rich (变式)Is this the hotel you said were to stay in your letter?A,where b.THE ONE C.at which d.in which e.that 用英语回答How can we deal with the gap between the poor and the rich?2分钟左右 sio2+h2o能反应吗,能就写出化学式,不能说理由 (1) Is this hotel ___ you said we were to stay in your letter?(2) Is this the hotel _(急~)(1) Is this hotel _____ you said we were to stay in your letter?(2) Is this the hotel _____ you said we were to stay in your letter?A.that B.where C.the one D. 熟石灰里的Ca(OH)2和细沙里的SiO2有无可能发生反应?说明理由.如果能,则写出化学式 (1) Is this hotel _____ you said we were to stay in your letter?(2) Is this the hotel _____ you said we were to stay in your letter?A.that B.where C.the one D.in which 加个 the 有什么区别 为什么说化石里“裹藏着生命的信息” 为什么说化石留下的是“密码” 氢氧化钙化学式为什么有个2,而且氢氧化钠没有?,请逐一回答,感激不尽我还没学什么负一价 正一价 这几个要强背吗？ They haven't decided which hotel＿＿.A.to stay B.to stay at C.staying at D.for staying They haven't decided yet which hotel to stay at.Animals will commonly use force,or a show of force,to decide which will stay.这两句中stay后面 为什么一个要接上at,另一个不用呢?