羧基与氨基反应条件

因为这里不便书写数学符号,麻烦大家到我的空间http://hi.baidu.com/%C0%B4%D7%D4%B9%FE%D2%F4/blog/item/2a4687351d5b7e1390ef39ca.html看一下题,答对必有重谢! 与不等式相关已知a2+b2-3=ab,求ab取值范围.小于等于3我已经算出来了,它的最小值如何求? 从P3--P42 要正确的, 高一下英语的一道填空题They got lost in the forest and the police came to their r_____ in time. 不等式性质的证明已知a-1>1,b-1>1,比较a+b与ab的大小能用做差法吗？ 高一的英语填空题：阅读下面的短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中的词语的正确形式填空.When hot summer comes,light and cool food gets more popula 苏教版六年级下册练习5语文与生活答案P89第一题 8道高一的英语填空题,求答 七、阅读《余震中的总指挥》 英语填空题,每空一词 苏教版六年级寒假作业语文答案 英语填空题.根据据以及提示写词.根据据以及提示写词1.Do you usually t_____ a short shower?2.If you make a short j______ ,you had better use your bike .3.When we use paper,remember use both s____ of the paper.4.He t_____ me how to 一道英语填空题（初一）千里之行始于足下.A journey always ________ ________the frist step. 几道英语词语填空题（初一）1.look!All the runners_______(run)very fast 2.I_______just_______(have)breakfast.I________(have)it at home3.The speaker_______(listen to)carefully at yesterday is meeting4.where_____you_____(be)all these years?5 英语问题[选择题][填空题]( )1.Would you like me to show you ___ Pudong New Area tomorrow?A.around B.by C.in D.at( )2.A:Why do we celebrate the Moon Festival,Kitty?B:I know only ___ ,not too much.A.few B.a few C.little D.a little( )3.It's tim 解下列不等式 |x²-5x+5| 谁能告诉我幂函数和指数函数最根本的区别?最好是一看便知晓的那种方式,不要搬一堆理论定义来回答,最好能用自己的话组织下哈~ 幂函数和指数函数有什么不同 P871.Unless I had the money,I wouldn't buy such an expensive thing.这里连词填unless为什么错呢?答案是Even if2.Don't put the TV set in _____ place.为什么是too warm a 填 how warm a 行么?这题该怎么考虑呢?3.There is more land i 高中数学幂函数与指数函数的区别?自己看书,看得有点搞不懂,谁能说清楚?幂函数的自变量是x.指数函数呢？告诉我幂函数与指数函数的自变量。这样我好辩别 (2x-p)(3x+2)=6x²+5x+q求P,q 几道英语单词填空题（初一的）[1]We b_classes at about 8:00 [2]They often f_ at hom.Mom is very angry[3]I l_ out of the window but saw nothing[4]He w_ tow kilometers to work every morning[5]She has to w_ the dishes after meals[6]L_ on the 几道初二的英语单词填空题谢谢了~1.She is outgoing and _________ (友好).She’s getting on well with us.2.I don’t think students should be _________ (allow) to bring mobile phone to school.3.Miss Wang is telling a kid how to ________ 英语单词填空题,I try to keep one step ahead of the rest of the staff,making sure that there's a ___of work for them,and I like to try to mix their work as much as possible.横线上填一个单词,单词的前3个字母是con. 解方程:3x+7*2+7/33=7928 求助二道英语选择题(请写明原因)1.With a book in his hand ,the boy ___in bed.A.lie B.lied C.lay D.lying 2.The teacher asked ___students to do our homework by ourselves.A.the B.his C.some D.us E.their 关于X的一元二次方程（1-2k）x²-2√k+1x-1=0有两个不相等的实数根,试求K的取值范围 关于x的一元二次方程(1-2k)x²-2x√k+1-1=0有两个不相等的实数根,求k的取值范围 是根号下k+1 在北京市中心乘地铁只要四十分钟.翻译 1.lt( )us a long time to learn English well.2.The train( )at 11. （急!明天要交的.） 用英语说【她在北京阳光第二中学上学】