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IBM DB2对关系型数据库进行面向对象的扩展，提供对面向对象的支持，主要包括：用户定义数据类型(UDT)，用户定义函数(UDF)和大对象(LOB)，形成新一代【 】数据库系统。
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One day Tom bought, for two dollars, a large number of used books. He put them in a (36) and pulled them to the (37) . He was to (38) at work until three in the morning. At three, he (39) to walk home. The streets were dark. Tom could (40) wait to arrive home and began to read his new books." (41) !" a voice shouted. But Tom was too (42) to hear the shout well.A moment later, a gunshot (43) his ear. He heard the shot. Tom turned to see what was (44) . An angry policeman ran toward him. The policeman thought that the bag did not (45) Tom. He shouted at Tom, "Drop it !"" (46) !" the policeman ordered.Tom opened it and the old books (47) out of it."Why not stop (48) when I shouted" the policeman asked, "If I had shot (49) , you would have been dead." "I didn’t (50) you," Tom said, "I am almost deaf."The policeman told Tom he was (51) for having shot at him." (52) would be better for you not to walk on the (53) at night." he said.Tom smiled, and told the policeman that his job (54) a telegrapher was a night job. The policeman could think of (55) to answer this. 36（）
在 SQL 语言中，删除一个数据库的定义，应该使用的语句是【 】。
案例分析题Some of the keys have a special use. There are referred to as command keys. The 3 most common are the Control or （） , Alternate or （） and the Shift keys though there can be more (the Windows key for example or the Command key). Each key on a standard keyboard has one or two characters. Press the key to get the lower character and hold Shift to get the upper. Disk Drives - All （） need a drive to get information off - or （） - and put information on the disk - or （） . Each drive is designed for a specific type of disk whether it is a CD, DVD, hard disk or floppy. Often the term ’disk’and ’drive’are used to describe the same thing but it helps to understand that the disk is the storage device which contains computer files-or software - and the drive is the mechanism that runs the disk. on the disk - or （）
小李，女，20岁。为了减肥，长期节食导致营养不良，到营养师处咨询。测量结果为：身高165cm，体重40kg，胸围75cm。(1)计算体格测量评价指标。(2)怎样进行综合评价和分析(3)营养师的改善意见是什么
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