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He have mended the woodwork and ______(油漆) the walls.
1年前
Excuse me, but can you tell me which road I should take to the post office?
1年前
Sixteen years ago a boy gave me an important gift. It was a smile.
1年前
已知多项式3x³+ax²+bx+1能被x²+1整除,且商式为是3x+1,求(-a)的b次方的值
1年前
My mother has been to America twice. 对划线部分提问twice。
1年前