题目内容

数据管理技术的发展经历了如下三个阶段：人工管理阶段、和数据库系统阶段。

查看答案

搜索结果不匹配？点我反馈

更多问题

"We want Singapore to have the X-factor, that buzz that you get in London, Paris, or New York." That is how Lee Hsien Loong, Singapore’s prime minister, (1) his government’s decision to (2) gambling in the country, (3) two large, Vegas-style casinos. Whether the casinos will indeed help to transform Singapore’s staid image remains to be seen. But the decision bas already (4) an uncharacteristic buzz among the country’s normally (5) citizens.The government has contemplated, and rejected (6) casinos several times in the past. One reason was (7) Singapore’s economic growth was so rapid that casinos seemed like an unnecessary evil. Buddhism and Islam, two of the country’s main religions, (8) on gambling. The government itself has traditionally had strong, and often (9) , ideas about how its citizens should behave. Until recently, for example, it refused to (10) homosexuals to the civil service. It also used to (11) chewing gum, which it considers a public nuisance.Nowadays, (12) , Singapore’s electronics industry, the mainstay of the economy, is struggling to cope with cheap competition from places like China. In the first quarter of this year, output (13) by 5.8% at an annual rate. So the government wants lo promote tourism and other services to (14) for vanishing jobs in manufacturing.Merrill Lynch, an investment bank, (15) the two proposed casinos could (16) in as much as $4 billion in the initial investment alone. (17) its estimates, they would have annual revenues of (18) $3.6 billion, and pay at least $600 million in taxes and fees. The government, for its part, thinks the integrated (19) , as it coyly calls the casinos, would (20) as many as 35,000 jobs. 1（）

A. claimed
B. maintained
C. announced
D. pronounced

The world’s first completely automatic railway has been built under the busy streets of London. On this railway, the trains drive themselves, and all the work is done by machines. This railway has seven "separate" lines, which connect at various stations. Together they serve most parts of England’s capital city. The people of London saw that this new line was very different from the others. The stations on the other lines needed a lot of workers. People are needed to sell tickets, and to check them. Others collect tickets when people leave the trains. There are men and women on the platforms (站台). They check that everything is all right. On the trains, too, there are several workers. This is all different on the Victoria Line. Here a machine checks and collects the tickets, and there are no workers on the platforms. If a man wants to ask about the trains, he must use a special telephone. How many divided lines does this railway haveThis railway has ______ divided lines.

运行以下程序段后，输出结果为【6】。 For I=1 TO 3 CLS Print "I="，I Next

树L中度为1、2、3、4、5、6的结点个数为6、4、3、3、5、1，则L中叶子的个数是【2】。