单项选择题
Which of the following is a pointing device offered in laptops?（）
A. Light pen B. Mouse C. Optical mouse D. Touch pad
单项选择题 Which of the following statements about an LCD screen is not true?（）
单项选择题 Which of the following devices will be plugged into an AGP slot on a motherboard?（）
单项选择题 What does AMR stand for?（）
