裸机是指刚刚装好了的操作系统，其他软件都没有安装的计算机。
A．正确
B．错误
参考答案：错
Today the public is much concerned about the way _______ .
A．nature is being ruined
B．which nature is ruined
C．on which to ruin nature
D．of nature to be ruined
慢性支气管炎最主要的病因为()
A．吸烟
B．感染
C．过敏
D．空气污染
E．遗传
