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类是一个支持集成的抽象数据类型，则对象是类的 【4】 。
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甲于11月1日在报上刊登广告出售某件古佛像石雕，价金500万元。乙于11月3日致函于甲，表示愿意以370万元购买。甲于11月6日函复愿降价10万元，但应于一周内答复，乙未为任何表示。 到11月26日，甲再致函于乙，愿意以400万元出售。乙不知甲之来信，于11月27日致函于甲，愿意以400万元购买。甲之信于11月28日上午到达，乙之信于11月29日下午到达。甲于发信后，获知有人愿意以高价购买，即于11月27日下午以特快专递发撤回之通知，因邮差误投，于11月30日下午始行到达。乙即发迟到之通知，并请求交付该件石雕，并移转其所有权。 12月5日在甲乙二人履行完毕后，经乙请专家鉴定，该石雕为赝品，仅值10万元。而且甲刊登广告时即明知其是赝品。 请回答下列问题： 如果公安局要吊销张永平工厂的消防安全合格许可证，那么张永平可否要求举行听证为什么
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张三、李四、王五于2003年9月9日各出资2万元买得一幅名画，约定由张三保管。同年11月，张三遇李一，李一愿购此画。张三即将画作价6万元卖给李一。事后，张三告知李四、王五。李四、王五要求分得卖画款项，张三即分别给李四、王五各2万元。李一购该画后，于同年12月又将画以10万元卖给李五。两人约定：买卖合同签订后李一即将画交付李五，但因李一欲参与个人收藏品展，故与李五约定，若该画交付后半年内该收藏品展览未举行，则该画的所有权即转移李五。依此约定，李一将画交付李五，李五亦先期支付价款6万元。李五友王三亦爱该画。2004年4月，王三以11万元价格自李五处买此画。王三嫌该画装裱不够精美，遂将该画送装裱店装裱。因王三未按期付装裱店费用，该画被装裱店留置。装裱店通知王三应在30日内付其应付费用，但王三仍未能按期支付。装裱店遂将画折价受偿，扣除费用，将差额补偿给王三。王三不同意装裱店这一做法。李一于2003年12月与李五签订合同后，因经营借款需要又于2004年2月与张一签订抵押该画的抵押合同，张一以前即知李一有该画，后张一在装裱店见此画，方知李一在抵押该画之前已将其卖给李五。李五于2004年4月死亡，其财产已由其妻壬与其子癸继承。张一找李一评理。李一找王 三，要求王三返还该画或支付李五尚未支付的4万元价款。 张三是否有权出卖该画张三与李一之间的买卖行为是否有效为什么
Host: Could you tell me a little about the beginnings of your entering the field of mathematicsMathematician: I started very, very young. I am self-taught, in fact. I have a high school degree, from the Bronx High School of Science. I don’t have a college degree. I only have an honorary doctorate.Host: Can you tell me about your time at high schoolMathematician: Yeah. In 1956 when the Russians put Sputnik in orbit, the United States got terrified, so they started having special programs for gifted children to study science. I benefited from all of this. I went to a special NY high school for science called the Bronx High School of Science; there was a wonderful science and math library there. I was very fortunate that I was there at the right time, at a time when the United States was trying to make new scientists. I took university level courses in high school and they were wonderful courses because they were done by some of the best people in their fields. They were really new. They were not following the old curriculum, the old subjects. In every way they were very up-to-date and modem presentations of mathematics, physics, chemistry and biology. I didn’t have to waste time with a course which was really out of date.And I also went to a program at Columbia University for bright high school students. These were professors at Columbia University teaching, Saturday morning, bright students from high school. That was wonderful. One of the things they did which were maybe even better than the course itself was that they let me use the Columbia University libraries. I was allowed to look at the books. I was reading immense quantifies of books on my own. I was an unbearable child; my mind was ablaze with mathematics and scientific ideas.Host: It was early that your interest and study of mathematics started. Was there a hook or something that triggered itMathematician: Well, I swallowed up many books. I looked for books that I could study on my own, books that emphasized the fundamental ideas. One of these books was A Mathematician’s Apology by G. H. Hardy that I mentioned before.Host: You read that very earlyMathematician: I read it very, very early. It is a delightful book. The normal textbooks require that you study one by one a vast series of textbooks. I looked for books that enable you to just parachute or jump into a subject without having to do fifteen courses first.Host: Well, as you have been working on it so long, what is your view about science Is mathematics discovered or is it inventedMathematician: As far as I am concerned, there are two kinds of science: One kind of science is when you already have an exciting field and you need to progress in that field. The most exciting thing for me is when you create a completely new field.Is mathematics discovered or is it invented When I was young, I thought things were black or white but as I grow older I understand that everything is complicated and different viewpoints are also correct. So, some days of die week I think mathematics is invented, other days of die week I think it is discovered. I mean, both viewpoints have validity and they illuminate the same subject from different angles.Host: Thank you for your time. The mathematician prefers to teach himself.
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