销售货物属于什么科目

数模——估计街道车辆数目如何从校园内一段公路上的车辆数据,模型估计每天有多少车辆在校园内行驶?并且模型分析车辆对行人的影响.尽快啊 英语翻译错了,错了.是LED strip connector 数学建模与数字仿真具体研究哪方面? 给个最最最最复杂的网名,符号,繁体都要,火星语也要,最好让人看不懂!不要重复的.好的追加改为30分! projector是什么意思 slide projector是什么意思 projector 蝉吃什么?蜘蛛吃什么? 知道了非标准直齿圆柱齿轮齿数模数中心距,它的齿顶圆怎么算? 养蝉给蝉吃什么 关于微笑的哲理格言,越多越好 急求有关“微笑”的哲理语句不一定要名人警句.有哲理就行了.最好能多几句 锥齿轮的国标齿数模数及半径尺寸有哪些,麻烦给几个,只有齿数或者半径也行,在线等,答好给追加20分 compartment during the whole week 与from monday to friday区别 We must have the pipe fixed immediately.It ____(leak)for a whole week. I dont like him proud appearance是什么中文意思 赵飞燕简介 一代艳后赵飞燕有多少情夫? 谁能介绍一小赵飞燕的生平 ——关于短语be set in 和be based on（1）用be set in早两个正确的句子,且附翻译.（2）说明be set in 和be based on用法区别（我不要听词组意思!我只想知道用法,别拿翻译给我当理由）万谢! 海绵宝宝里11号坏单词是什么意思 海绵宝宝英文单词怎么说英语的谐音或音标 People are wondering why the price of most food _____(rise) so quickly 答案是has risen 求详解最后面还有一个 in the past The rise in the price of bread will a______ all the people in that small town Lots of people are wondering _________.选哪个 为什么Lots of people are wondering _________.A.how long does it take to rebuild the destroyed areasB.if China wins the first place in the next Olympic Games C.how soon Tai Wan will return back to mo 英语第几个生日前要不要加 the. if in the heart will feel sad,then please smile t 最好造个句说明, Your smile warm my heart,have you by my side I feel safe,please do not leave Your smile warm my heart,have you by my side I feel safe,please do not leave proud的意思?要全 有没有自信的之类的意思I wasn't too proud to wait for carousels.在这里面怎么讲？ Proud啥意思 proud什么意思