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案例分析题在以下各种转换和映象中，应用程序可实现的是（）；数据库管理系统（DBMS）可实现的是（）。 数据库管理系统（DBMS）可实现的是（）。
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案例分析题Sometimes the processes in which people are engaged are dependent upon other processes being completed first, possibly by other people. For example, on an automobile （） , it is necessary for the body to be constructed before the doors can be added on. Attempting to add the doors first would be pointless, because there would be nowhere to attach them. Thus, if there is no body ready to have doors added, the process for adding doors has to be （） until the process for creating the next body is complete. This is known as （）Obviously, there are many cases where people have to wait for other people to do something. However, if everyone in such a situation is waiting for someone else to do something first, then no one will ever be able to do anything. When discussing processes, this situation is known as （） , because all of the involved processes are effectively dead because of locks they have on resources. Usually someone in such a situation will eventually notice and abort the process, allowing normal flow to （） , and often warning signs can even be spotted ahead of time to avoid ’it in the first place. This is known as （）
Last year our country hosted the Olympic Games. It is held (41) .Many players (42) , all over the world take part in it. The old Olympic Games began around the year 776BC in Greece and the modern games came from the (43) ones. The Olympic Games stopped for a long time. But people didn’t (44) them. The first Olympic Games in modern times happened in 1896. They were held in Greece—the games were born in this (45) . In the 1896 games, there were 311 players from just thirteen countries. After that, (46) countries took part in the games. One of the great competitions (47) not for a medal. It’s the competition among countries to hold the game. To hold the Olympic Games is a great prize (48) a country. Last year, Beijing (49) the 29th Summer Olympic Games. We all felt (50) our great country.
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When you are in England, you must be very careful in the street because the traffic drives on the left, not on the right. So before you cross a street, you must look to the right and then left. In the morning and in the evening when people go to or finish work, the streets are the busiest. Traffic is the most dangerous then. When you go by bus in England, you also have to take care. Always remember the traffic is different from that in China. It moves on the left. Have a look first, or you may go the wrong way and have an accident. In many English cities, there are big buses with two floors. You can sit on the second floor. From there you can see the city very well. It’s very interesting and enjoyable. Sitting on the second floor of the bus, you can have a good look at the city.
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