几道英语题目、帮个忙
题目
几道英语题目、帮个忙
补全对话
A:What's you favorite subject?
B:Science
A:Science?But I think it's so difficult.
B:( ) you work hard,you can learn science ( )
What's your favorite subject?
A:P.E
答案
If easily
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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