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题目内容
（河南商丘师范学院幼儿英语(专升本)）
Today, _________ can give you a music synthesizer, a fax machine, a CD-ROM drive, ect. ( )
A
input devices
B
expansion cards
C
output device
D
joystick
A
input devices
B
expansion cards
C
output device
D
joystick
参考答案