xe^-x∧2导数

I didn't buy the second-hand book because the seller wanted ____ money than I had expectedA.less B.least C.most D.more 填空题第三题怎么做 一道填空题（是第三题,会做的做第四题也要做） 这三道填空题怎么做? Is that your pen?Is _________your pen?横线上填什么 is that a your pen?这句话错在哪儿 麻烦来个英语好点的大神帮忙翻译一句话为什么我如此的想念你 为什么我如此的离不开你 难道是因为我先爱上你吗?在线等 麻烦了 谢谢. We have no time___A.go home B.to go to home C.go to school D.to go to school Remember we have no time to__A.lose B.save C.spend D.take到底要选哪个啊，能不能给个一致的， ( )I can not ___you any money because I have ___ left. A.borrow,litter B.lend,little much as（ ）,I .could not lend him the money because I simply did not have that much spare ca...much as（ ）,I .could not lend him the money because I simply did not have that much spare cash.AI would have liked toB.I would like to have C.I shoul As I have little money ,I can't lend you ---A.some B.any C.few D.much 为什么 双曲线的b是怎么作图得出的RT 请问双曲线在作图中是什么意思 描写花争奇斗艳的成语 No ,_ _a Chinese dictionary. spend,took,pay,cost的区别 Chinese dictionary 是什么意思 _______100 dollars buying that dress yesyerday A It took me B It cost me C I took D I spent 走进（ ） ,蝴蝶 （ ） ,花儿 （ ）. Mary,is this your pen?No,mine is bigger,（）with ren pancap.A.it B.this C.that D.one 英语翻译要用5句话 像蝴蝶一样的花是什么花 -that famous cherry tree_____because of pollution. -yes,we have to do something to save it.----that famous cherry tree_____because of pollution.----yes,we have to do something to save it.A has did B had died C is dead D is dying我选了B,原因是 持教师证/老师证 去北京旅游 有没有优惠?若有,哪些景点?（非特殊节日期间） 持教师证/老师证 去北京旅游 有没有优惠?若有,哪些景点?（非特殊节日期间） 的发展推动了人类对浩瀚宇宙的探索 That is your pen(加her pen变为选择疑问句） 题目的一个步骤怎么都看不懂cos2A+cos2B+2cos（A+B)=2cos[（2A+2B)/2]cos[（2A-2B)/2]+2cos（A+B) 不要看不懂的- -）某园林的门票每张10元,使用一次.考虑靠人们的不同需求,也为了吸引更多的游客,该院里除保留原来的售票方法外,还推出了一种：“购买个人年票”的售票方法（个人年票从 英语自考生可以考哪些重要证书 英语自考生考公务员的条件?在考公务员的时候,会不会除了要求学位证书外,还会要求平均成绩达到多少多少的? what does the little girl do in the bedroom 答案是什么.what does the little girl do when the bears come home