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已知函数f（x）=e^x-ax，g（x）=-ax[（1/2）x-1]+1
（1）已知区间[-1，1]是不等式f（x）＞0的解集的子集，求a的取值范围．
（2）已知函数φ（x）=f（x）+g（x），在函数y=φ（x）图象上任取两点A（x1，y1），B（x2，y2）.若存在a使y1-y2＜=m（x1-x2）恒成立，求m的最大值．

请为解决民工流动问题提出合理化建议

一定温度下，在恒容密闭容器中发生如下反应：2A(g)+B(g) 3C(g)，若反应开始时充入2molA和2molB，达到平衡后A的体积分数为a%。其他条件不变时，若按下列四种配比作为起始物质，平衡后A的体积分数大于a%的是 ( )
A、2molC B、2molA、1molB和1molHe（不参加反应）
C、1molB和1molC D、2molA、3molB和3 molC

突然忘了植物的根冠分生区伸长区成熟区 谁有液泡谁没有

2、儒释道三者相对于中国是外来的是： (2.00分)
A．儒家
B．释家
C．道家
D．以上均是

下图为30°N附近海平面某月气压示意图（单位：hPa）。读图回答1～2题。
　　1. 图中反映季节与下列叙述相吻合的是 (C)
　　A．北京日出东南方 B．天山牧民在山麓牧场放牧
　　C．澳大利亚北部盛行东南风 D．地球公转速度接近最快
　　2．甲、乙两地自然景观差异明显的主要原因是( D)
　　A．海陆位置 B．太阳辐射 C．地形地势 D．大气环流

的解析？

测量电源内阻怎么选择滑动变阻器量程？依仗什么

1.已知函数f(x)=(ax^2+x+a)/e^x,当x属于[0,2]时,f(x)>=1/e^2恒成立,求a的取值范围
2.已知函数f(x)=1/3ax^3+[(a-1)/2]*x^2-x在x属于[-2,-1]上无极值,则a的取值范围为a>=2或a=<-1(要过程)
3.若不等式mx^2+2mx-4<2x^2+4x对任意x属于R均成立，则实数m的取值范围是？

怎么除二氧化碳里的二氧化硫？二氧化碳里要是含有氯化氢呢？

给定两个命题p、q，若┐ p是q的必要而不充分条件，则p是┐ q的？

能产生植物激素的细胞一定能产生酶吗？

无机环境中的碳通过什么方式进入生物圈

每我世界如你只没果喜就欢的生一爱有过你在想会 连成一句话 _

A civilized society has the virtues of beauty, culture, comfort and peace. However, the motor-car is these virtues.
A visitor from outer space viewing our cities would conclude that the human race is made up of shiny metallic “beetles” creeping along vast networks. He is not far . The motor-car, far from being a vehicle for man, is determining the design of whole cities. The single largest consumer of valuable city 4 is its roads and car parks. If there were fewer roads, we could have more natural parks in which to 5 , more cultural centres and more public squares. Cars rob our cities of these civilized 6 .
Not only do cars occupy space, they also create . Psychologists have confirmed that noise causes stress, and cities are indeed very noisy places. Cars are also the single largest of air pollution. How can we say we are when we live in an atmosphere full of stress and health dangers?
Our economy depends on . These days it is becoming rare and , yet cars continue consuming large amounts of petrol. Energy, which could be used to run factories and houses, is being 12 on roads.
Finally, cars have created a new type of monster, the motorist. Necessity has made man forget his gentle and has transformed him into a selfish, dangerous monster, frightening innocent pedestrians, killing dogs, swearing at other motorists. The car is an outlet for his aggression.
1/11
To sum up, the motor-car has been for destroying our cities, damaging our health,. A. representing
2. A. removed
3. A. generally
4. A. space B. promoting B. better B. merely C. destroying C. different
D. replacing D. wrong D. hardly D. light D. work D. histories D. growth D. provider D. civilized D. industry D. cheap D. produced
D. responsible
D. convincing increasing economic problems and humankind of their gentle nature. C. finally B. time B. manners C. material C. individuals C. noise C. effect C. innocent 5. A. share B. relax C. hide 6. A. pleasures 7. A. conflicts 8. A. problem 9. A. polite 10. A. energy 11. A. wasteful 12. A. left 13. A. action 14. A. suitable
B. chances B. source B. awake B. available B. burnt B. possible B. appearance B. wealth C. transportation C. expensive C. arranged C. idea D. nature C. punished 15. A. warning B. reminding C. robbing

已知函数f(x)=㏑x-ax²,其中a>0
(1)求f(x)的单调区间
(2)当a≤½时，若x0属于【1，3】求f(x0)的最小值

设复数Z满足（1-i)z=2i,则z=（）

英语作文，请帮忙修改一下。Dear Editor,
We took part in avoluntary activity organized by our school last Sunday.The side of the voluntary activity at the Culture Square.Not only did we hand out leaflets but also we had a speech about the earthquake.We promated the earthquake knowledge and how we can do when the earthquake comes.As one of the volunteers,I felt rather tired after this activity,but it was very valuable.I learned a lot in this activity.And I think it was a good chance to develop our confidence and how to communicate with others well.
Best wishes!
yours,
Lihua

函数y=2|sin(4x+三分之派）|的周期是

谁有2014届高三全国百校名卷大重组，浙江专版物理，14，15的答案？