问题 填空题

下面程序是用来打印九九乘法表的,请补充完整。  Dim i As Integer,j As Integer,Strl$  Strl=" "  For i=1 To 9  Forj=1 To 9   If 【】 Then      Strl=Strl + Str$(j)+"X"+Str$(i)+"="+Str$(Val(i * j))    Else   Strl=Strl & Chr(13)    【】     End If    Next j  Next i  Print Str

答案

参考答案:j<=i

解析:Exit语句总是出现在If语句或Select Case语句内部,而If语句或Select Case语句在循环内嵌套,用Exit语句中断循环。函数首先定义了两个Integer型变量i、 j,并将空格赋给Strl;第一个For循环的变量I从1到9步长为1,第二个循环的变量i也是从1到9步长为l,循环体为选择结构,它是用来输出i*j的值,所以j的值应该小于此时 i的值,那么If的判断语句为j<=i,当满足条件时执行Then后面的语句,即输出i*j的值,如果不满足执行Else后面的语句,并跳出内循环。

单项选择题

The fact that most Americans live in urban areas does not mean that they reside in the center of large cities. In fact, more Americans live in the suburbs of large metropolitan areas than in the cities themselves.
The Bureau of the Census regards any area with more than 2,500 people as an urban area, and does not consider boundaries of cities and suburbs.
According to the Bureau, the political boundaries are less significant than the social and economic relationships and the transportation and communication systems that integrate a locale. The term used by the Bureau for an integrated metropolis is an MSA, which stands for Metropolitan Statistical Area. In general, an MSA is any area that contains a city and its surrounding suburbs and has a total population of 50,000 or more.
At the present time, the Bureau reports more than 280 MSAs, which together account for 75 percent of the US population. In addition, the Bureau recognizes 18 megapolises, that is, continuous adjacent metropolitan areas. One of the most obvious megapolises includes a chain of hundreds of cities and suburbs across 10 states on the East Coast from Massachusetts to Virginia, including Boston, New York, and Washington, D.C. In the Eastern Corridor, as it is called, a population of 45 million inhabitants is concentrated. Another megapolis that is growing rapidly is the California coast from San Francisco through Los Angeles to San Diego.

The underlined word "integrate" in Paragraph 3 is closest in meaning to ______.

A.benefit

B.define

C.unite

D.restrict

单项选择题