A、 continuously even if your computer is turned off
B、 continuously whenever your computer is turned on
C、 on scheduled dates
D、 only when you choose to run it
答案:B
A、 continuously even if your computer is turned off
B、 continuously whenever your computer is turned on
C、 on scheduled dates
D、 only when you choose to run it
答案:B
A. creator
B. emulator
C. signal
D. synthesizer
A. high efficiency
B. double
C. multiplex
D. duplex
A. tweet
B. Text
C. blog
D. Chat
A. 正确
B. 错误
A. 正确
B. 错误
A. all of the above
B. instructions from a computer program
C. audio signals from a microphone
D. temperatures from a thermostat
A. 正确
B. 错误
A. VGA
B. PCA
C. VCL
D. PCL
A. Accounting
B. Project management
C. Groupware
D. Presentation
A. Database
B. Application
C. Productivity
D. System