I think____not difficult ______ English every morning
题目
I think____not difficult ______ English every morning
A that :keep reading
B that:to keep read
C it's:keep reading
D it:to keep reading
答案
D
如果是AB的话,后面接的从句没有主语.C的话缺that
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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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