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英语翻译 怎么翻译,求助 mfz abc4a 灭火器 的有效期是多久? 问几道高考英语选择题1.They chatted ___ coffee about their experience as volunteers during the charity.Aover Bon Cto Dwith为什么选A 2.The price of the flat now is ___ that last year.A.as twice high as Btwice more expensive than C.as high 1.Bungee jumping is a sport _____ a person makes a vertical jump from a high platform with a rubber cord tied to their ankles so that they bounceA which B when C where D that为什么不能选D呢 You can’t win the game_______you never practice dur 英语翻译.(2012江苏,27）The notice came around two in the afternoon that the meeting would be postponed.那个came around在此处具体何解?迷惑了………… 1.The manager listened to the customers' complants attentively with great patience,------to miss any point.A.not trying B.trying not C .to try not D.not to try2.A latest report by Taobao said that visitors through wireless devices-------from 10 milli .The reason why she was upset was _____ her son didn't pass the final exam.A.thatB.soC.whyD.becauseBefore the final examination,many students have shown __C___ of tension.Some have trouble sleeping while others have lost their appetite .A.anxietyB.ma ABC干粉灭火器的ABC是什么意思? 椭圆mx^2+5y^2=5m的准线方程是x=±5√2/2,求m值及焦点坐标,离心率. 已知双曲线mx^2-nx^2=1(m>0,n>0)的离心率为2,则椭圆mx^2+nx^2=1的离心率为 已知椭圆E的焦点在x轴上,长轴为10,离心率为4/5.已知直线4X-5Y+40=0,椭圆E上的点到直线的最大距离是多少? （）Don't get too ------- after hearing the good news.A hasn't B has C isn't D is 在菱形ABCD中,点E、F分别在BC、CD上,∠BAF=∠DEA.求证：BE=DF 如图所示,已知菱形ABCD中,E、F为BC、CD上的两点,∠BAF=∠DAE (1)证明：BE=DF 已知双曲线C:x^2/a^2-y^2/b^2=1的离心率为根号5/2,焦点与椭圆x^2/9+Y^2/4=1的焦点相同若圆M位于双曲线C与直线x=5所组成的封闭区域(包含边界)内,求圆M的半径的最大值? 地理知识（1）1 世界上最大的群岛是_____州的_____,最湿润的州是_____,最缺水的州是_____,地势最和缓的大陆是_____,起伏最大的大陆是_____.2 世界最大的的高原是_____,最高大的山脉的_____,最大的平 一道地理知识油棕的生长需要怎样的条件? 有种足球是由32块黑白相间的牛皮缝制面成的黑皮可看作正5边形,白皮可看作正6边形,设白皮有x块,则黑皮有（32-x）块,每块白皮有5条边,共有6x条边,因每块白皮有3条边和黑皮连在一起,故黑皮 知道椭圆焦点在x轴上,b=c,N(0,3)到椭圆上点的最远距离为5倍根号2,求椭圆方程 北美洲与南美洲气候方面的异同~为什么说欧洲西部是亚欧大陆的“大半鸟” 解释太阳系中的行星含义!其次为什么开除一颗行星?它哪些地方不符合行星标准? 6,7,8三个月是南半球的（ ）A 春季 B 夏季 C 秋季 D 冬季不回了.帮忙回答下. 黄河流经宁夏的长度约为多少? 如图,菱形ABCD中,E是BC上一点,F是AE,BD的交点,且AE=AB,∠EAD=2∠BAF,若BE=5,求AF的长 英语单选相似句i will never forget the days[ ]we studied together.i will never forget the days( )we spent together.a.that b.when答案为什么是ba 初三英语单选 语文导学案答案 八下 八下语文词语手册义务教育出版社的,13课《旅鼠之谜》的注释如果有的帮下,如果没空算了 语文初2第13课旅鼠之谜的注音,词语急,今天要知道的,是词语手册上的注音,没有的话,全文拼音注释也行,多点,没有自己写两个 把一张平行四边形纸沿高剪开,拼成一个长方形,拼成的长方形的长与平行四边形的底（ ),拼成的长方形的宽与平行四边形的高（ ）. 若椭圆m分之x方+10分之y方=1(m>10),离心率=6分之根号6,m=