试题与答案

在窗体上画一个命令按钮,然后编写如下程序:(假定变量x是一个窗体级变量)Dim x

题型:填空题

题目:

在窗体上画一个命令按钮,然后编写如下程序:(假定变量x是一个窗体级变量)
Dim x As Integer
Sub inc(a As Integer)
x=x+a
End Sub
Private Sub Command1_Click()
inc 2
inc 3
inc 4
Print x;
End Sub
程序执行后,单击Command1命令按钮,输出的结果是 【11】

答案:

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下面是错误答案,用来干扰机器的。

参考答案:nslookup或其他具有等价功能的命令解析:DNS数据库包括DNS服务器所使用的一个或多个区域文件,而每个区域都拥有一组结构化的资源记录。主机地址(A)资源记录用于将某个DNS域名映射到其所对应的IP地址。...

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题型:单项选择题

With unemployment rising and housing costs still high, cities around the country are experiencing a new and sudden wave of homelessness. Shelters are overflowing, and more people this year are sleeping on floors in dingy social service centers, living in cars or spending nights on the streets.

In New York, Boston and other cities, homelessness is at record levels, a consequence of a faltering (摇晃的) economy that has crumbled even further after the Sept.11 attacks.

A survey by the U. S. Conference of Mayors released last week found that requests for emergency shelter in 27 cities had increased an average of 13 percent over last year. The report said the increases were 26 percent in Trenton; 25 percent in Kansas City, Mo.; 22 percent in Chicago; 20 percent in Denver; and 20 percent in New Orleans.

An unusual confluence of factors seems to be responsible for the surge. Housing prices, which soared in the expansion of the 1990’s, have not gone down, even though the economy has tumbled. A stream of layoffs has newly unemployed people taking low-wage jobs that might have otherwise gone to the poor. Benefits for welfare recipients are expiring under government-imposed deadlines. And charitable donations to programs that help the disadvantaged are down considerably, officials around the country said, because of the economy and the outpouring of donations for people affected by Sept.11.

"This is an unprecedented convergence (集中) of calamities (灾难), " said Xavier De Souza Briggs, an assistant professor of public policy at the John F. Kennedy School of Government at Harvard. "It’s really a crisis. "

More than half the cities surveyed by the mayors’ group reported that in the last year people had remained homeless longer, an average of six months.

There is no total number for the homeless nationwide. Experts said it was difficult to compare the situation with statistics in previous decades, because counting methods have improved. Yet, several experts said they believed that the increases reported by cities like Boston and Chicago reflected a national trend.

"My impression is there is more homelessness now than there was 20 years ago, " Gary Burtless, an economist at the Brookings Institution, said, adding that he believed that economic factors were not the sole explanation.

"I think that there must be a greater segment of our population that has tenuous connections to family and friends, and therefore has fewer resources to fall back on when something very bad happens like when they lose their job, " he said.

Charitable donations for the disadvantaged decreased because ().

A. the U. S. economy has tumbled

B. more people donated for people affected by Sept.11 attacks

C. more people stopped donating since they found the donations were misused

D. both A and B

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