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明明小朋友在回答自己为什么是个好孩子时说：“我不撒谎，我认真参加游戏，并把玩具让给别人。”这是（ ）。（2019年国赛题库试题）
过曲线上某一点处切线的斜率等于该点的导数值。
选择下列段落正确的拓展方式Many old buildings in cities are still being found useful. In several cities, old buildings that wereno longer being used have been converted to a variety of useful structures. For example, oneschool building was changed into ninety nine rental units for elderly and low income residents. InBaltimore, Maryland, six schools were converted into 132 units with the help of a four milliondollar city bond financing arrangement. “School House 77” in Boston utilizes three recycledelementary schools and an abandoned instrument factory. All these examples show how cities are using unneeded schools, police stations, libraries, and boarded up factories that are structurally sound and even architecturally interesting buildings.
选择下列段落拓展方式：1.After lunch, while the other girls were sunbathing, Pat and I returned to the water. Soon cramps spread from my stomach to my legs. Immobilized by pain and fear, I yelled for help. My friend thought I was joking, so she ignored me. However, Sister Theresa came to my rescue when she noticed my plight. She pulled me out of the water and administered resuscitation. When regaining consciousness, I realized how close I had come to death. My experience with near death reminds me every day how close we all are to death in our daily lives.
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