一个视图和一组灯光能组成一个场景。用户可以在AutoCAD的图形文件中建立()场景。
A、3个
B、5个
C、不超过20个
D、无数个
设窗体上有一个名为Text1的文本框和一个名为Command1的命令按钮,并有以下事件过程:程序运行时,如果在文本框中输入-5,则单击命令按钮后的输出结果是( )。
A、5
B、20
C、25
D、输入错误
You executed the following FLASHBACK TABLE command: FLASHBACK TABLE emp TO TIMESTAMP (’11:45’,’hh12:mi’); Which two statements are correct? ()
AThe FLASHBACK TABLE statement will not be written to the alert log file.
BThe EMP table that was dropped by mistake from the database will be restored.
CThe changes made to the EMP table since the specified time will be undone.
DThe FLASHBACK TABLE statement will not maintain the existing indexes on the EMP table.
EThe FLASHBACK TABLE statement will be executed within a single transaction.
FThe list of transactions that have modified the EMP table since the specified time will be displayed.
You configured the large pool for Oracle backup and restore operations. As a result, which component would require less memory?()
A、 streams pool
B、 shared pool
C、 log buffer
D、 keep buffer cache
E、 recycle buffer cache
下列方法中,属于白盒法设计测试用例的方法的是( )。
A、错误推测
B、因果图
C、基本路径测试
D、边界值分析
Given: What is the result?()
A、 test
B、 Exception
C、 Compilation fails.
D、 NullPointerException