单项选择题The common input devices are the ( ) and the ( ).
单项选择题A computer must include three of following.Which one is not necessary?
单项选择题RAM is a( )storage.
单项选择题A ( ) is a collection of relation fields.
单项选择题Which of the following is not a format for a graphical image file?
单项选择题They fell in love ( ) the first sight.
单项选择题Xiaoming ()notes at the meeting.
单项选择题Am I supposed ( ) all the rooms or just this one?
单项选择题I always insist ( ) wholemeal bread.
单项选择题() they were eating, they discussed the website.