—How far is it from your home to school?─It's fifteen ______ walk.
A:minute
B:minute's
C:minutes
D:minutes’
党的十七大报告指出,要“努力使全体人民学有所教、劳有所得、病有所医、老有所养、住有所居”。解决这些问题的关键是( )
下列方程中是一元一次方程的是( )