以知一垄断企业成本函数为TC=5Q2+20Q+1000，产品的需求函数为Q=500-P

Write a story of your own,based on your personal experience.写一个故事 200 words .急用 写比较接近生活的题材就好了 Did your sister write the story?(改为被动语态) We're a good study team.这句英文的译文是什么? puerto rico 是哪个国家的?美国? player of all the little white [one]Little White 是2b 至少4次perfect是什么意思 perfect是什么意思啊 ()attention of his teacher,John is working hard to do well in English.A To get B Getting C GetsD Has got 余闲居,案头瓶花不绝阅读答案 l can 什么the flowers with my 什么 意思 bounce out My egg bounced out .请从词的根源出发进行讲解 digital bounce是什么意思digital bounce是SE7EN的新歌 给我起个英文情侣名 要两个随便点、要好听的 有没有谁知道比较好的英文情侣名?不要那些在网页常见的什么A.B.C.D一直下之类的,那个我常看到,一点都不好.那个英文名最好有点含义一定是要情侣的,谢谢 英语高一短文改错My brother was very interested in computers and enjoyed writing programs of his own.He used to downloading information from the Internet and made good use it.He liked to explore the World Wide Web and used the Internet ti comm 高一短文改错.英语 求英语短文改错 matthew Matthew McConaughey是什么意思 She volunteers her time____help Xiao Lin with his English.A.for B.down C.offA.for B.to C.off Matthew Boulton是什么意思 英语高手进来看看,拜求一英文名.中文名字su hua rong.取什么的英文名好了.最好发音相似的.先谢啦性别------女。因为觉得音译的可以用的久 求高一短文改错题! Betty and Kate enjoy themselves in Hawaii today.改成同义句 enjoy （ ) ,mary and kate A yourself b myself c yourselves d themselves his house is a large house-boat with a roof,one of hunreds that move up and down.his house is a large house-boat with a roof,one of hunreds that move up and down.请翻译一下. With the price of oil_____,the economy of that country is slowing down.A.going upB.bringing upC.rising upD.taking up 拜求英文名@如果中文名叫“东琴”,英文名叫什么好呢? mathew和matheuu到底哪一个是纯正的英格兰姓氏 马修?曾经一位英国的老师给我讲过这个名字,但是他的发音我不确定到底如何拼写,因为英国发音的double-u和W几乎一样的,所以现在请教各位了解英 Yesterday I went to see my childhood friends Li Gang and invited to have lunch at his home.At the table,Li Gang complained what the dishes were not delicious,but talked to his parents impolitely.He also asked them for 500 yuan.It was such much money