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证券公司的自营业务必须以自己的名义、通过专用自营席位进行，并由非自营业务部门负责自营账户的管理，包括开户、销户、使用登记等。 ()
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制造某种产品需要4道工序，每道工序可选用多种方法。下图列出了制造这种产品各道工序可选用的不同方法：从节点1开始，连续经过4条线段(表示4道工序所选用的方法)，组成一条线路，直到节点12结束。每条线段上标记的数字表示利用相应方法每件产品可以获得的利润(元)。企业为了获取最大利润，需要找出从节点1到节点12的一条线路，使其对应的各道工序的利润之和达到最大。利用运筹方法计算后可知，制造每件产品可以获得的最大利润是(54)元。
The Pentagon is the U.S. military establishment, where more than 35,000 people are now employed.
A．Baseball.B．Basketball.C．Neither A nor B.D．Football.
听力原文： To quickly review the main points covered in Chapter 1, the most important part of sports is its influence and popularity among people from different walks of life throughout the world. Then what is the case here？ Well, if you judge by the number of people who go to see the games and by the number of those who actually play it, basketball is probably the most popular sport in the U.S. It is mainly an indoor game, and the season extends from late fall, through the winter, to early spring. There are many professional teams, but for the most part basketball is a school sport. There is hardly a high school or college in the country that does not have its team and its loyal fans.
In spring and summer, the most popular sport is base-ball. During the warm weather, you can see young men and boys playing this game in many parts of the country. Radio and television bring the details of the big games to every corner of the land, and the activities of the professional teams are a topic of conversation for Americans everywhere.
In the fall, the most popular sport is football. As you know, this is not the same kind of game that is so popular in other parts of the world. Like basketball and baseball, it is typically American, and those who have never seen it before have difficulty seeing any sense in it. But for most of the spectators the game itself is not so important as the music, the cheering, and the festive spirit that go with it. On a cool bright autumn afternoon, there is nothing so colorful and exciting as a football game.
(30)
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