点线面构成作业变异

“价格的确定是以两个人合用一个房间为根据的.”的英语翻译 Now many young oeople go _______ to beach children there(south-east,north-west)要说为社么 There are many old people and many families with young children living here.live为什么要加ing? 已知直线Y=KX-1与曲线X=Y²只有一个交点,求实数K的值,并求这个交点坐标. 已知曲线C:x=√(4-y^2)和l:kx-y-k+3=0有且只有一个交点,求实数k的取值范围 6999995+599996+49997+3998+407+89 6999995+599996+49997+3998+407+89怎么简便 599996 49997 3998 407 89怎样算简便? 用简便方法计算5996+4997+3998+407+89 599996+49997+3998+299+31 年轻人喜欢在周末开车去兜风 young people like to （ ） （ ） （ ） （） on weekend Many people ,e_____________ young people like American movies Many young people like the famous movie s____,____里填什么单词 Young people like to act on the spot without much thinking.1.这句话最后的thinking为什么不能用though?两个不都表示思考,思想 有什么区别?2.act on the 450÷ 25 525÷ 25 3500÷ 125 10000÷ 625 49500÷ 900 9000÷ 225用简算 已知双曲线x^2/a^2- y^2/b^2=1(a>0,b>0)的一条渐近线与直线x+2y-1=0垂直,则双曲线的离心率等于多少? 已知双曲线x ^ 2-y ^ 2/ a = 1的一条渐进线与直线x-2y+3=0垂直,求实数a的值 动物之间的爱 作文9000到10000 已知双曲线x^2/2-y^2/m=1(m>0)的一条渐近线为y=根2x,求实数m的值 已知a的2次方-3a+1=0,求4a的2次方-9a-2+9÷(a的2次方+1) (-3a)的2次方(4a的2次方-4/9a+1) people前面用much还是many Not much people?还是Not many people?Not_______ people come here in the winter. people 应该用many people 还是much people呢? 分析《过故人庄》和《游山西村》的异同 饮酒 过故人庄 游山西村 这三首诗的不同在哪里? 若直线y=kx是曲线y=x3-3x2+2x上一点出的切线,求实数k 《过故人庄》和《游山西村》都是描写作者做客农家的情形,它们分别表达了作者怎样的感情? 过故人庄和游山西村过故人庄 【唐】孟浩然故人具鸡黍,邀我至田家.绿树村边合,青山郭外斜.开轩面场圃,把酒话桑麻.待到重阳日,还来就菊花游山西村南宋 陆游 莫笑农家腊酒浑,丰年留客足 《游山西村》和《过故人庄》分别表达了作者怎样的感情 Many young people in the West are expected to leave _____could be life's most important decisionMany young people in the West are expected to leave _____could be life's most important decision —marriage —almost entirely up to luck A.as B that C w 已知圆（x-3）²+（y-4）²=16,直线l:kx-y-k=0,若l与圆交与两个不同点P,Q,求实数k的取值范围