十年一觉扬州梦的觉

指数函数中,指数不同,底数不同的两个函数值比较大小同上,中间值如何确定？ 3道英语选择题,求助,请写明原因.谢谢1.The heavy snow didn't ( )the international airlines.A.pay attention toB.add toC.make a differenceD.keep to2.These cabbages( )well because they( )nice.A.look;sellB.sell;are lookedC.sell;lookD.ar 若关于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,求k的取值范围 关于x的一元二次方程-x²+（2k+1）x+2-k²=0有两个不相等的实数根,求k的取值范围 1.There( )a dolphin show in the zoo tomorrow evening.2.-( )you( )free tomorrow?-No.l( )free the day after tomorrow.3.Mother( )me a nice present on my next birthday. 六年级英语题目.（嗯.今晚要有答案.明天要交的~） 指数函数的底数若指数函数y=a^x在[－1,1]上的最大值与最小值的差是1,则底数a等于_______. 指数函数底数可以为0? 英语选择题及填空1.my favorite subject is music.What's___?(一个词）2.one of ____(they) is our friend3.the music____very relaxing.A.are B looks C,sound D,sounds 填空1._____you teacher_____?She is friendly and helpful.2.I found the story ___at the start.A bore B boring C bored D bores 填空选择题（英语）1.A:Hello 2924587B:( ),Li Dong?A:( ),this is Wang Ming.2.He is a good teacher and a good friend of ( ) all,too.A.them B.their C.they D.theirs 英语选择题和填空 英语填空及选择题His zdvice can't_________(有帮助)at all.( )Those girls have beautiful__________.A.sounds B.noise C.voices D.voice 是短文 六年级2009年英语课堂作业全部答案我的英语不行 天天挨骂 急用 我会感谢他的 份额色鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅鹅饿 ,正确形式填空4.It _________ten years since they _____________to France .A.was…moved B.was …have moved C.is …have moved D.is …moved10.Mr White invited his friends __________dinner with him.A.had B.have C.having D.to have11.The weather in 英语适当形式填空与选择题1.jenny drives as()(care) as me2.kitty did quite () in the english ,i did even()a.better;well b,good;better c,well; better d.well;better 英语选择题和适当形式填空Thank you for your help .---It is my ___(please).( )mrs Green ___ go to hospital,but now she is in good health.A.has to b.needs to c.used to D.ought to 英语选择题选词填空（适当形式）选3个good,easy,many1.each team must try to score ________ runs than the other tean does.2.second,they must catch and throw the ball__________3.you can understand what is happening in the field_________. 英语单项选择题,以适当形式填空怎么做英语卷老是这两个不会,谁有办法,就算给我说几个固定短语也可以啊如:help sb (to)do sth 学六年级下册英语课堂作业本第44页2.3两题怎么做 帮我详细解释一下三角函数、反三角函数和对数函数他们的性质、计算,最好有例题. 请教有关指数函数、对数函数、三角函数和反三角函数的问题?所有指数函数、对数函数、三角函数和反三角函数的图象和性质 还有Y=Asinx+bcosx怎样转化为基本函数形式并求周期 关于X的实系数方程X^2＋KX＋K^2－3K＝0有一个模为2的虚数根求实数K 关于x的方程x^2-kx+6=0的两个实根均大于1.求实数k的取值范围答案上写k/2>1,f(1)=1-k+6>0 △=k^2-24>=0,解得2√6 若方程kxˇ2—（2k+1）x-3=0在（-1,1）和（1,3）内各有一个实数根,求实数k的取答案k0并不在该题给的区间中, 解方程 3x^2-18x-10=0 解方程：X倍的更号X分之2 ＋2倍的更号2分之更号X ＋更号18X ＝10 我急用那＼＼ 3道难度的英语选择题请帮我找3道高中英语选择题（很有挑战性的,有难度的）, 设当x≤1,函数y=4^x-2^(x+1) +2的值域为D,且当x∈D,恒有f(x)=x^2+kx+5≤4x,求实数k的取值范围 已知函数f(x)=lnx+1 (1)若f(x)≤kx恒成立,求实数k的取值范围