【简答题】Although she is __________ a linguist, she can speak “beautiful” in several languages, which earns her many friends. [A] not more of [B] not much of [C] not many of [D] not any of
【简答题】有一个虚存系统,某进程占用3个内存块,开始时内存为空,执行如下访问页号序列:1,2,3,4,1,2,5,1,2,3,4,5, (1)采用先进先出(FIFO)淘汰算法,缺页次数是 次; (2)采用最近最久未使用(LRU)淘汰算法,缺页次数是 次; (3)如果将进程占用的内存块改为4个内存块,执行上述页号访问序列,采用先进先出(FIFO)淘汰算法,缺页次数是 次,采用最近最久未使用(LRU)淘汰算法,...
【单选题】-How much does it to fly from Beijing to Haikou one way? -About 1000 yuan. [ ]
【简答题】有一个虚存系统,某进程占用 3 个内存块,开始时内存为空,执行如下访问页号序列后: 5 , 0 , 1 , 2 , 0 , 3 , 0 , 4 , 2 , 3 , 0 , 3 , 2 , 1 , 2 , 0 , 1 , 5 , 0 , 1 采用最近最久未使用( LRU )页面置换算法,面页置换次数是多少? ( 需画置换图 )
【单选题】How much does it to take the train?
【判断题】特征数是指涉及对流传热问题的几个参数组合而成的无量纲参数。
【单选题】She kept on()although she was tired.
【单选题】_____ she is only 4 years old, ______ she can plays the piano.A.Although, butB.Although, \C.But , \D
A.
_____ she is only 4 years old, ______ she can plays the piano. A.Although, but
【简答题】有一个虚存系统,某进程占用 3 个内存块,开始时内存为空,执行如下访问页号序列后: 0 , 1 , 2 , 3 , 1 , 4 , 1 , 2 , 5 , 1 , 2 , 3 , 4 , 5 (1) 采用先进先出( FIFO )淘汰算法,缺页次数 (1) 是多少? (2) 采用最近最少使用( LRU )淘汰算法,缺页次数 (2) 是多少? (3) 若用最优( OPT )算法,缺页次数(3)是多少?
【简答题】有一个虚存系统,某进程占用3个内存块,开始时内存为空,执行如下访问页号序列后: 5,0,1,2,0,3,0,4,2,3,0,3,2,1,2,0,1,5,0,1 采用时钟(Clock)页面置换算法,页面置换次数是 次 ;缺页率是 。