( )We shoula have ___fat and sugar every day.A.a little B.plenty of C.little D.much
题目
( )We shoula have ___fat and sugar every day.A.a little B.plenty of C.little D.much
2.Tom's English is_____(good) than before.
3.
A sandwich is 10 yuan.A hamburger is 12 yuan.(合并成一句)
A sandwich is____ ____ a hamburger.
答案
A
better
cheaper than
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已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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