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150457将两个按照升序存放数据的顺序文件合并后，合并出来的结果文件也将是按照升序存放的。After merging two sequential files that store data in ascending order, the merged result files will also be stored in ascending order.

150458有些程序设计语言包含可以用于追加文件记录的语句。Some programming languages contain statements that can be used to append file records.

150459如果要改变顺序文件中的单个记录，那么整个文件都要被改写到一个临时文件中。If you want to change a single record in a sequential file, the entire file will be rewritten to a temporary file.

150460当文件关闭时，文件内部名和外部名之间的联系就会中止。When the file closes, the connection between the internal and external names of the file stops.

150461当文件以Input模式打开时，数据可以被程序写入到这个文件中。When the file is opened in Input mode, the data can be written to the file by the program.

150462如果一个文件以Output模式打开，但是该名字的文件已经在硬盘目录中存在，那么后者的所有内容都会被删除。If a file is opened in output mode, but the name of the file already exists in the hard disk directory, then all the contents of the file will be deleted.

150463文字处理软件被设计成能读入所有的二进制文件。Word processing software is designed to input all binary files.

150464数据文件可以保存程序的输出，以备将来使用。Data files can save the output of the program for future use.

150465数据文件可以被一个以上的程序使用。Data files can be used by more than one program.

150466因为Score1数组、Score2数组和Score3数组的大小相同，并且相应元素包含相关数据，所以它们叫做平行（parallel）数组。Because Score1, Score2 and Score3 are of the same size and the corresponding elements contain relevant data, they are called parallel arrays.

150467在用冒泡排序对数5、30、25、15进行升序排序的过程中，进行了3次交换。In the bubble sort ascending order of number 5, 30, 25 and 15, three exchanges were made.

150468如果知道100个元素被分配到二维数组A中，则A的两个下标都必须是从0到9，即A必须是10行和10列。If you know that 100 elements are assigned to a two-dimensional array A, the two subscripts of A must be from 0 to 9, that is, A must be 10 rows and 10 columns.

150469一维数组和二维数组必须在同一个语句中声明。One-dimensional arrays and two-dimensional arrays must be declared in the same statement.

150470如下声明的数组Character，它表示的字符串长度为10：Declare Chr[10] As CharacterThe array Character declared below represents a string length of 10:Declare Chr [10] As Character

150471在使用二分查找法之前要求数据已经排好序。Before using the binary search method, the data should be ordered.

150472二分查找法只能用于数值型数据。Binary search method can only be used for numerical data.

150473冒泡排序方法不能用来把数值数据按照降序排序。 Bubble sorting cannot be used to sort numeric data in descending order.

150474在两个平行数组中，所有对应的元素都必须数据类型相同。In both parallel arrays, all corresponding elements must have the same data type.

150475下面的语句：Declare Array1[10], Array2[20] As Integer为200个变量分配了空间。The following statement:Declare Array 1 [10], Array 2 [20] As IntegerStorage space was allocated for 200 variables.

150476如果一个声明语句分配100个存储空间给一个数组，那么程序必须给这个数组的100个元素都赋值。If allocates 100 storage spaces to an array, the program must assign 100 elements to the array.

150477用下标变量（数组）的一个好处是，与相同数量的无下标变量相比，它占用的存储空间更少。One advantage of using subscript variables (arrays) is that it takes less storage space than the same number of non-subscript variables.

150478数组中的元素在计算机内存中连续存储。Elements in arrays are stored continuously in computer memory.

150479如果N=2，Sum(N)是一个函数，且Sum(1)=5，那么语句：Set Sum=Sum(N-1) +N将把值6赋给Sum。If N = 2, Sum (N) is a function and Sum (1) = 5, then the statement:Set Sum = Sum (N-1) +NThe value 6 will be assigned to Sum.

150480一个函数调用其自身的过程称为递归。The process by which a subroutine calls itself is called recursion.

150481内置函数是由编程语言提供的，使用它的时候不需要包含其代码。Built-in functions are provided by programming languages, and do not need to contain their code when using them.

150482函数是一个子模块，它可以返回一个值。A function is a subroutine that returns a value.

150483全局变量的有效范围不是整个程序。The scope of global variables is not the whole program.

150484变量在程序中的可用范围称为该变量的作用域。The scope of a specific variable used in a program is called the scope of the variable.

150485如果数据从被调函数传递到主程序，那么可以称为数据被返回到或导出到主程序。If the data is passed from the subprogram to the main program, it can be said that the data is returned to or exported to the main program.

150486语句：Display ToUpper(Yes)是不允许的，因为“Y”已经是大写了。Statement: Display ToUpper (Yes) is not allowed because Y is capitalized.

150487ToUpper（）函数和ToLower（）函数可以作用于任何类型的变量。ToUpper （） and ToLower （） functions can act on any type of variable.

150488按引用专递的被调函数中形参的变化将导致调用函数中相应实参的变化。Changes in reference parameters in subroutines will result in changes in the corresponding arguments in the calling module.

150489按值传递的被调函数中形参的变化将导致主调函数中相应实参的变化。The change of the parameter value in the subroutine will result in the change of the corresponding argument in the calling module.

150490计算如下表达式的值：int(3.9)。Calculate the value of the following expression: int(3.9).a.　1b.　2c.　3d.　4

150491计算如下表达式的值：Sqrt(4)。Calculate the value of the following expression: Sqrt (4).a.　1b.　2c.　3d.　4

150492使用 Floor（）函数和使用 Int（）函数的效果不一样。The effect of using Floor （） function and Int （） function is different.

150493对数据进行验证（validate），意思是指保证数据在合适的范围之内。Validate data means to ensure that the data is within the appropriate range.

150494如果For循环的增量是正的，那么当初值大于终值时，循环体不会被执行。If the increment of the For loop is positive, then the loop body will not be executed when the initial value is greater than the final value.

150495如果循环增量为负值，则For循环中计数变量的值会在每次循环时递增。If the loop increment is negative, the value of the count variable in the For loop will increase every time.

150496两个不相交循环不能够嵌套在第三个循环中。Two disjoint loops cannot be nested in the third loop.

150497While循环不能够嵌套在For循环中。The While loop cannot be nested in the For loop.

150498如果一个For循环嵌套在另一个循环中，此时两个循环的边界值必须是不一样的。If a For loop is nested in another loop, then the boundary values of the two loops must be different.

150499如果一个For循环嵌套在另一个循环中，两个循环的计数器变量应该是不一样的。If a For loop is nested in another loop, the counter variables of the two loops should be different.

150500如果Number=7，下列命题为真。If Number = 7, point out the truth or false of the following expressions.Sqrt(Number*Number ) == Int(Sqrt(Number*Number))

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