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是用来存储数据库系统中数据的对象，在数据库中，它都包含某个特定主题的信息，这些信息分别以和__的二维表格方式存储。

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In future, as newspaper fade and change, will politicians therefore burgle their opponents’ offices without punishment Journalism schools and think-tanks, especially in America, are worried about the effect of a collapsing journalism.Nobody should enjoy the disappearance of once-great newspapers. But the decline of newspapers will not be as harmful to society as some fear. 46. Denmocracy, remember, has already survived the huge television-led decline in circulation since the 1950s. It has survived as readers have evaded papers and papers have evaded what was in conservative times thought of as serious news. And it will surely survive the decline to come.47. A few papers that invest in investigative stories which often benefit society the inost are in a good position to survive, as long as their owners do a comnpetent job of adjusting to changing circumstances. Publications like the New York Times and the Wall Street Journal should be able to put up the price of their journalism to compensate for advertising revenues lost to the internet—especially as they cater to a more global readership. 48. As with many industries, it is those in the middle—neither highbrow, nor entertainingly populist—that are likeliest to fall by the wayside.49. The usefulness of the press goes much wider than investigating abuses or even spreading general news; it lies in holding governments to account--trying them in the court of public opinion. The internet has expanded this court. Anyone looking for information has never been better equipped. People no longer have to trust a handful of national papers or, worse, their local city paper. News-aggre-gation sites such as Google News draw together sources from around the world. The website of Britain’s Guardian now has nearly half as many readers in America as it does at home.50. Furthermore, a new force of "citizen" journalists is itc.hing to hold politicians to account. The web has opened the closed world of professional editors and reporters to anyone with a keyboard and an internet connection. Several companies have been chastened by amateur postings—of flames erupting from Dell’s laptops or of cable TV repairmen asleep on the sofa. Each blogger is capable of bias and slander, but, taken as a group, bloggers offer the searcher after truth boundless material to chew over. Of course, the internet panders to closed minds; but so has much of the press. 47

午宴(Luncheon)属于非正式宴会。( )

A. 对
B. 错

商务档案按照档案的内容划分属于______档案。

类型是数字数据类型的特殊类型，多用于存储货币值，在输入数据时，不必键入人民币符号和千位分隔符，系统会自动将其显示，并在其后面添加两位小数。如果小数部分多于两位时，系统会对数据进行。其最多可存储8个字节。