答:[最佳答案] model: sets: wh/wh1..wh6/:capacity; ven/v1..v8/:demand; links(wh,ven):cost,volume; endsets [email protected](links(i,j): cost(i,j)*volume(i,j)); @for(ven(j): @sum(wh(i):volume(i,j))=demand(j)); @for(wh(i): @sum(ven(j):volume(i,j))<=capacity(i)); data: capacity...
答:[最佳答案] 你好,上次帮你回答了一个题,是英文的,怎么这次也还是英文的,不知道你学的是那本教材? 我对你有一个小小的忠告,这些题目都很基本,建议你把曼昆的宏观经济学5版看一下,明白了原理后,这些题都很简单.这个题考察蒙代尔模型....
答:[最佳答案] 模特、模型
答:[最佳答案] 用take place,有预谋性的.而happen是指偶然性的.
答:[最佳答案] 这本电影叫[电话谋杀案]Dial M for Murder.主演:瑞·米兰德、格蕾丝·凯莉、罗伯特·克明斯 是恐怖电影大师希区柯克1954年的作品.在1998年迈克道格拉斯翻拍了希区柯克的作...
答:[最佳答案] 歌曲名:Murder, Murder歌手:Eminem专辑:The Slim Shady EPLeft the keys in the van,with a gat in each handWent up in Eastland and shot a policemanFuck a peace plan of citizen bystandsBut shit is in my hands, here's your life spanFor what ...
答:[最佳答案] Waiting For The Miracle baby,i've been waiting.宝贝我在等待 i've been waiting night day.不分昼夜的等待 i didn't see the time.忘了时间 i waited half my life away.等待了半辈子 there were lots of invitations.有如此多的诱惑 and i know u sent me ...
答:[图文] s important for a mystery shopper to have the right().A.programB.profileC. Sometimes it's important for a mystery shopper to have the right(). A.program B.profile C.progress D.process ...
答:[答案] 1. suddenly/abruptly did the earthquake occur 2. What fine/wonderful/good weather 3. runs/can run twice faster 4. that her parents had (the) time 5. No matter how hard I try/However hard I try 6. will have come to light/will have been brought to light 7. that ...