在VisualFoxPro中,关于视图的正确描述是( )。
A、视图也称作窗口
B、视图是一个预先定义好的SQLSELECT语句文件
C、视图是一种用SQLSELECT语句定义的虚拟表
D、视图是一个存储数据的特殊表
数据流图中带有箭头的线段表示的是( )。
A、控制流
B、事件驱动
C、模块调用
D、数据流
Which of the following computer ports supports hot swapping?()
A、LPT
B、USB
C、COM
D、PS/2
The Serial ATA (SATA) cables can extend up to ().
A、10 meters
B、5 meters
C、1 meter
D、100 meters
E、15 meters
A technician installs a SATA controller card and moves the hard drive cable from the system board to the SATA controller. The system POSTs and the controller BIOS recognizes the hard drive but does not boot to the hard drive and start Windows. Which of the following is the MOST likely cause of the problem?()
A、Windows cannot be booted from a controller card.
B、The hard drive must have Windows reinstalled because a new controller card was installed.
C、The SATA controller card was not set as a boot device in the computer BIOS.
D、The new controller must have the correct jumper settings for Windows mode.
打开视图后,可以显示视图中数据的命令是( )。
A、DO
B、USE
C、BROWSE
D、CREATE