frameset的含义是()。
A、表单
B、表格
C、链接
D、框架集
Windows系统中的磁盘碎片整理程序__(1)__,这样使系统__(2)__。空白(1)处应选择()
A、仅将卷上的可用空间合并,使其成为连续的区域
B、只能使每个文件占用卷上连续的磁盘空间,合并卷上的可用空间
C、只能使每个文件夹占用卷上连续的磁盘空间,合并卷上的可用空间
D、使每个文件和文件夹占用卷上连续的磁盘空间,合并卷上的可用空间
软件设计中模块划分应遵循的准则是( )。
A、低耦合低内聚
B、高耦合高内聚
C、低耦合高内聚
D、内聚与耦合无关
线缆接头、接地卡做防水抱扎,要按顺序紧密缠绕绝缘胶带和防水胶带(采用3X3处理,即3层绝缘+3层防水+3层绝缘),馈线抱扎后擦启用扎带将抱扎处固定后涂上硅胶。()
A、对
B、错
Which of the following connector types is used on CAT5e cable?()
A、RJ-45
B、ST
C、RJ-11
D、BNC
The session of user SCOTT receives the following error after executing an UPDATE command on the EMPtable: ERROR at line 1: ORA-00060: deadlock detected while waiting for resource On investigation, you find that a session opened byuser JIM has a transaction that caused the deadlock. Which two statements are true regarding the session ofSCOTT in this scenario()
AThe session is terminated after receiving the error and JIM can continue with his transaction.
BSCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.
CThe session is rolled back after receiving the error and JIM can continue with his transaction.
DSCOTT has to reexecute the last command in the transaction after he commits the transaction.