UNIX操作系统是一个支持交互式操作的单任务操作系统。( )
参考答案：错
解析：应改为：UNIX操作系统是一个支持交互式操作的分时操作系统。
— What a cool car! Can I drive it for a while?
— Sorry, it's not ______. I saw John driving it once. I think you should ask ______. [ ]
A. me; his
B. mine; him
C. yours; him
D. my; him
常用构件阳台，其代号为YP。( )
