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Although I spoke to him many times, he never took any ________ of what I said.
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已知二次函数y=﹣x2+2x+3. (1)求函数图象的顶点坐标和图象与x轴交点坐标; (2)当x取何值时,函数值最大? (3)当y>0时,请你写出x的取值范围.
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满地黄花堆积,憔悴损,__________。(李清照《声声慢》)
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用括号内动词的适当形式填空 I _____ (receive) many nice presents on my birthday party. How happy I was!
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