程序保护无效时，可以对内存进行程序的输入、编辑、修改等操作。
参考答案：对
There is only a ___________ ride from his home to his office.[ ]
A. 5 minutes
B. 5-minutes
C. 5-minute
D. 5 minute's
最大的八位数比最大的七位数多1。[ ]
