问题
单项选择题
A PC is a general purpose tool built around a ______.
A．display
B．microprocessor
C．mouse
D．keyboard
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
A PC is a general purpose tool built around a ______.
A．display
B．microprocessor
C．mouse
D．keyboard
参考答案：B