The books I have read ____(mark) in bright red.You can easily find them.
题目
The books I have read ____(mark) in bright red.You can easily find them.
答案
填 are marked.这句子中,I have read是修饰the books的定语从句,真正的主语是the books,由于有被动意味,所以谓语用被动形式,故填are marked.
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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.
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