描写夏天和冬天的诗句
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海水和江水互溶么?如题.貌似是胶体方面的知识.
高中立体几何难,该怎么学?
not very often等于seldom还是sometimes很重要的,拜托了!谢谢啦!
如图所示,质量分别为3m、2m、m的三个小球A、B、C用两根长为L的轻绳相连,置于倾角为30°、高为L的固定光滑斜面上,A球恰能从斜面顶端外竖直落下,弧形挡板使小球只能竖直向下运动,小球落地
英语翻译On the other hand,a great many people insist that name is just a symbol,which is of little significance.They even go so far as listing some famous figures with common names.其中They even go so far as listing some famous figures with com
求一道高考的物理题~两辆相同的货车,一辆空载,一辆满载,在同一路面上以相同速率行驶,当紧急刹车后轮子只滑不转,下列哪句判断正确?A货车由于惯性大,滑行距离远B货车由于受到摩擦阻力大
微积分应用问题Water is leaking out of an inverted conical tank at a rate of 6500 cm3/min at the same time that water is being pumped into the tank at a constant rate.The tank has height 6 m and the diameter at the top is 4 m.If the water level
英语翻译如题
不得不做某事的英文
圆C1的方程:x∧2+(y+1)∧2=4,圆C2的圆心C2(2,1)(1)若圆C1与圆C2外切,求圆C2的方程,并求出内公切线的方程.(2)若圆C2与圆C1相交于A.B,且AB的绝对值=2根2,求圆C2的方程速求,有会做的请留言,不希望
《济南的冬天》美在哪
________by the police,the crazy kidnappers had nothing to do but give up.A Surrounded B Surrounding C Having surrounded D Was surroundedAs the sun goes down,Xitang looks even more attractive with lanterns______high and low.A hanging B hung C hanged D
平面直角坐标系内有一条直线L,经过B(3,1),若以A(1,2)为圆心,3为半径画圆,圆A被直线L截得最短弦长?不是2根号5,
在平面直角坐标系xoy中,已知圆C:(x-1)平方+y平方=9,若直线l过点A(2,2),且被圆C截得的弦长最短,则直线 l 的方程是?
what (happen)to you before the police arrivedhis family (not hear)from him since he went to Americahow many awards ( ) juliet()(get)by the end of2008
葛朗台拜访严监生150字O(∩_∩)O谢谢~
whose在定语从句中一定修饰人吗?还是只修饰名词
whwn the police arrived the aline left the ground 为什么用when而不用while
这他哥的啥意思啊?
求 内涵哥 什么意思
“青青子衿”用英文怎么翻译!
芳芳满12岁时,只过了3个生日,她的生日是几月几日
I can tell you the way to get to there 改病句
芳芳的年龄是妹妹的5倍,3年后芳芳的年龄是妹妹的2倍.芳芳和妹妹各有多少岁?
芳芳今年a岁,妹妹比她小5岁,6年后妹妹比她小多少岁?6年后妹妹又多少岁?
二次函数ax²+bx+ca<0,开口向下a>0,开口向上b是左同右异c是什么?我忘了.
填空
初中英语填空 急
几道初中英语填空,谢谢!
姑娘说:哥哥,别难过,我不过随便说说罢了.盲姑娘随便说说的事情是什么?急.
盲姑娘对哥哥说:"哥哥,你别难过,我不过随便说说罢了."改为转述句急
姑娘对哥哥说:"你别难过,我不过随便说说罢了."改为第三人称转述句