What's the matter with Bradley?
A. He forgets something of school stuff.
B. He is just concentrating on school stuff.
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What do we know about Bradley?
A. He would leave this place for master's degree.
B. He would go to a local graduate school.
Why can't Bradley have special accommodations?
A. Because there's no record about it.
Because the receptionist forgets.
分析站间距有较大差异的线路适合什么票价制？并简述理由。
假如物理盘块大小为4KB，一个文件大小为21KB，则应该为这个文件分配的物理盘块数是（）。
A. 6
B. 5
C. 21
D. 4
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