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【单选题】
假定把磁盘上一个数据块中信息输入到一单缓冲的时间 T 为 100μs ,将缓冲区中数据传送到用户区的时间 M 为 50μs ,而 CPU 对这一块数据进行计算的时间 C 为 50μs ,那么,系统对每一块数据的平均处理时间为( )。
A.
200μs
B.
150μs
C.
100μs
D.
50μs
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