英译汉This is called the boot process, or booting the PC, which is controlled by the PC's basic input-output system (BIOS).

Viruses can be transmitted by. A: Booting a PC from an infected mediu. B: executing an infected program. C: pirated software and shareware. D: All of the above.

After booting up a new computer， a technician observes that the USB ports are not working with any USB devices. Which of the following should be done FIRST？（） A: Check the computer to verify that the jumper settings for USB are correct. B: Connect the USB devices to a different computer to test the devices. C: Buy new USB wires and test USB functionality. D: Check the BIOS to verify that USB functionality is enabled.