2008 AP Computer Science A 计算机科学A真题系列之Practice Exam选择题免费下载

历年 Computer Science计算机科学系列

真题与答案下载

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2008 Computer Science A Practice Exam Multiple Choices Free Download

2008 计算机科学A模考选择题部分免费下载

此套题仅 p I含有选择题，

共计时1小时15分钟，共40题

占总分50%

仅可以使用铅笔答题

完整版下载链接见文末

部分真题预览：

8）Consider the following class declaration.

Which of the following declarations will compile without error?

I. Student a = new Student ();

II. Student b = new Student ("Juan",15);

III. Student c = new Student ("Juan","15");

1. I only
2. II only
3. I and II only
4. I and III only
5. I, II, and III

Questions 10-11 refer to the following information.

Consider the following instance variable and methods. You may assume that data has been initialized with length > 0. The methods are intended to return the index of an array element equal to target, or -1 if no such element exists.

10) For which of the following test cases will the call seqSearchRec (5) always result in an error?

1. data contains only one element
2. data does not contain the value 5
3. data contains the value 5 multiple times

1. I only
2. II only
3. III only
4. I and II only
5. I, II, and III

11)Which of the following should be used to replace // Line 1 in seqSearchRecHelper so that seqSearchRec will work as intended?

1. if (last <= 0) return -1;
2. if (last <0) return -1;
3. if ( last < data.length) return -1;
4. while ( last < data. length)
5. while ( last >= 0)

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