单项选择题
A. DDR without ECC
B. DDR with ECC
C. SDRAM without ECC
D. SDRAM with ECC
单项选择题 Which of the following devices is MOST likely associated with MIDI?（）
单项选择题 Which of the following expansion cards is MOST likely to have a coaxial input?（）
单项选择题 Which of the following printing technologies uses piezoelectric pressure pads to produce smallbubbles that are moved to the paper?（）