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【简答题】
设页引用序列：(1，2，3，4，2，1，5，6，2，1，2，3，7，6，3，2，1，2，3，6)，物理块(Page frame)数为3，且所有的块初始时为空。当分别采用最近最少使用置换(LRU)、先进先出置换(FIFO)和最佳置换(OPT)的页面置换算法时，各会发生多少次缺页?要求给出求解过程。
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】They will have it finished in ______.
A.
three quarter of an hour time
B.
three quarters of an hour time
C.
three quarter of an hour's time
D.
three quarters of an hour's time
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【多选题】生态平衡包括以下哪些方面？
A.
阶段性
B.
稳定性
C.
平衡性
D.
动态性
查看完整题目与答案
【单选题】Student: How long can I have these books? Librarian: This one is on the three-hour-loan; you may have it for only three hours ______.
A.
The others are due in 30 days, on February 3.
B.
You may have it longer if you like.
C.
Drop the books into the RETURN boxes by the library entrance.
D.
The fine for overdue books is 5 dollars an hour.
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【简答题】翻译: across from __________
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【单选题】It took us quite a long time to get here. It was_________journey.A．a three－hour B．a three hour C
A.
12. It took us quite a long time to get here. It was_________journey. A．a three-hour
B.
a three hour
C.
three hour
D.
three hours
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【多选题】现阶段我国农业的发展目标包括以下哪些方面？
A.
保证农产品尤其是粮食产量的稳定增长，实现农产品供求的基本平衡
B.
保证农民收人水平的不断提高，实现农民收入与农业生产的同步增长
C.
生产安全、优质农产品，满足人民对健康、生态、绿色食品的需求
D.
保证农村社会稳定，实现农村经济与社会的协调发展
查看完整题目与答案
【单选题】As my train wasn't due to leave for another hour, I had plenty of time to spare. After buying some newspapers to read on the journey, I made my way to the luggage office to collect the heavy suitcase ...
A.
was leaving later than scheduled
B.
was not leaving for another hour
C.
was not scheduled to leave
D.
was delayed for some reason
查看完整题目与答案
【简答题】将下列词或词组翻译成汉语 1. introduce 2. nationality 3. manage 4. vacation 5. obliged 6. in a minute 7. spare time 8. in sb’s position 9. across from 10. feel free to do something
查看完整题目与答案
【简答题】当x∈(0，+∞)时，幂函数y=(m 2 -m-1)x -5m-3 为减函数，求实数m的值。
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【单选题】根据第43次《中国互联网络发展状况统计报告》统计,截至2018年12月,我国网民规模达8.29亿,我国手机网民规模达( )亿,网民通过手机接入互联网的比例高达98.6%。
A.
8.17
B.
8.02
C.
7.12
D.
9.17
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相关题目：
【单选题】They will have it finished in ______.
A.
three quarter of an hour time
B.
three quarters of an hour time
C.
three quarter of an hour's time
D.
three quarters of an hour's time
查看完整题目与答案
【多选题】生态平衡包括以下哪些方面？
A.
阶段性
B.
稳定性
C.
平衡性
D.
动态性
查看完整题目与答案
【单选题】Student: How long can I have these books? Librarian: This one is on the three-hour-loan; you may have it for only three hours ______.
A.
The others are due in 30 days, on February 3.
B.
You may have it longer if you like.
C.
Drop the books into the RETURN boxes by the library entrance.
D.
The fine for overdue books is 5 dollars an hour.
查看完整题目与答案
【简答题】翻译: across from __________
查看完整题目与答案
【单选题】It took us quite a long time to get here. It was_________journey.A．a three－hour B．a three hour C
A.
12. It took us quite a long time to get here. It was_________journey. A．a three-hour
B.
a three hour
C.
three hour
D.
three hours
查看完整题目与答案
【多选题】现阶段我国农业的发展目标包括以下哪些方面？
A.
保证农产品尤其是粮食产量的稳定增长，实现农产品供求的基本平衡
B.
保证农民收人水平的不断提高，实现农民收入与农业生产的同步增长
C.
生产安全、优质农产品，满足人民对健康、生态、绿色食品的需求
D.
保证农村社会稳定，实现农村经济与社会的协调发展
查看完整题目与答案
【单选题】As my train wasn't due to leave for another hour, I had plenty of time to spare. After buying some newspapers to read on the journey, I made my way to the luggage office to collect the heavy suitcase ...
A.
was leaving later than scheduled
B.
was not leaving for another hour
C.
was not scheduled to leave
D.
was delayed for some reason
查看完整题目与答案
【简答题】将下列词或词组翻译成汉语 1. introduce 2. nationality 3. manage 4. vacation 5. obliged 6. in a minute 7. spare time 8. in sb’s position 9. across from 10. feel free to do something
查看完整题目与答案
【简答题】当x∈(0，+∞)时，幂函数y=(m 2 -m-1)x -5m-3 为减函数，求实数m的值。
查看完整题目与答案
【单选题】根据第43次《中国互联网络发展状况统计报告》统计,截至2018年12月,我国网民规模达8.29亿,我国手机网民规模达( )亿,网民通过手机接入互联网的比例高达98.6%。
A.
8.17
B.
8.02
C.
7.12
D.
9.17
查看完整题目与答案