一句话引起的回忆作文

利用积分区域的对称性和被积函数的奇偶性计算∫∫(x∧3cos(y∧2)+y)dxdy,积分区域D为曲线y=x∧2,y=4x∧2,y=1围成的封闭区域 利用函数的奇偶性,判断f(x)=x^ -2的对称性 利用函数的奇偶性,判断f(x)=3x^5 的对称性 who is he that really know me and put me in heart怎么翻译? 若（x+y）(x+y-1)=6,求x+y的值 抛物线（1）y1=-3x^2（2）y2=-1/3x^2（3）y3=3/2x^2的开口有小到顺序是RT 求望庐山瀑布的修辞手法 已知直线y1=-3x+6和抛物线y2=-2x+3x+2,若y1=y2,则x=?,若y1＞y2,x的取值范围是 望庐山瀑布后两句运用了什么修辞手法(两个) 脱式计算 36分之5+9分之2+12分之1+3分之1 ∫d(1/x) /lnx d(lnx^-1)=-x^-1对吗? 谁可以帮我找50道分式方程.不是应用题哈是方程我会给你们加分啦 seal the fate 绝对值lnx的积分 stop riding in Sometimes it's hard to park cars in big cities. Once an old man arrived at a parking place first. He stopped his large Rolls Royce just in front of the parking place. Then he turned his head and began to drive his car very slowly into the space. Just 关于感恩的征文,500字左右, Stop riding in cars,or there will be more and more pollution,which is bad for our lives.用riding 原为什么不能用driving我英语不太好 公章到底是official seal还是common seal啊?哪个更权威一点?我想知道依据,不要想当然哦我是指文件最后，需单位盖章的地方，会注明“公章”两字，不是图里这种挨。yeskynew,我开始也跟你想得一 seal chop stamp,三个都是章,有什么不一样?公司的公章怎么说? stamp 和 seal 表示动词盖章时候的区别 检验专用章的翻译是Inspection Special Seal 吗 求正式点的翻译啊或者用special seal for inspection？ for还是of？ 写在书前的话叫（ ）言 填空 写在书前面的话叫什么话? 写在书前的话叫（ ）言? to stop是修饰the way吗,我知道turned前是主语 Who invented the first television?(改成被动语态）—— —— was the first television ——? tell some stories ____him read books _____bedtime 请填介词, stop:coooo21a uknown hard error 如题 The car was invented in 1885.对划线部分提问划线部分是in 1885. prefer sth over sth