单项选择题
A.SATA B.RAID C.USB D.EIDE
Whenauseristypingonalaptopthecursorsometimesmovesonitso...
单项选择题When a user is typing on a laptop the cursor sometimes moves on its own. Which of the following is MOST likely the cause？（）
A.The keyboard driver needs to be updated. B.There are conflicting serial ports. C.The mouse driver needs to be updated. D.The user is brushing the touch pad while typing.
Whichofthefollowinghastobeinstalledonalaptopinordertous...
单项选择题Which of the following has to be installed on a laptop in order to use a compact flash storage device？（）
A.a multi-media card reader B.USB 2.0 drivers C.USB 1.1 drivers D.an enhanced 1.44 floppy drive
