单项选择题
Which of the following devices is MOST likely associated with MIDI?（）
A.Synthesizer B.Modem C.Webcam D.Microphone
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?（）
单项选择题 Which of the following is a valid Class A TCP/IP address?（）
