How many are there tea on the table?
题目
How many are there tea on the table?
答案
是改错吗?
How much tea is there on the table?
tea是不可数名词所以用much和is而How many(How much)后+名词+谓语
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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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