单项选择题

In a typical PDA， which of the following is the primary input tool？（）

A.voice navigation
B.stylus
C.scroll wheel
D.keyboard

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热门试题

单项选择题

Whichofthefollowingmodesconservesthemostbatterypowerwhileallowingretrievalofthecomputingsessionatalatertime？（）

A.Hibernate
B.Suspend
C.Standby
D.Shutdown

单项选择题

Ifanexternalmonitorisattachedtoalaptopanditdoesnotwork，whichofthefollowingactionsshouldatechniciantakeFIRST？（）

A.Re-install the operating system.
B.Open and close the cover.
C.Use the function key to activate the monitor.
D.Install new software for the keyboard.