请详细说明原因.
题目
请详细说明原因.
If you're( )in Spain,do come and see me.
A.ever B.never C.once D.nearly
This book is ( )more useful for us students?Yes,but it is ( )too difficult.
A.quite,quite B.much,much C.rather,quite D.quite,much
3.He doesn't sing ( )that night ae he usually does.
A.so well B.so better C.more better D.so best
4.Jack writes ( ) than he did before.
A.much carefully B.more carefully C.much more carefully D.much carefully
答案
举一反三
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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