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【单选题】
选择在最近的过去最久未访问的页面予以淘汰的算法称为( )置换算法。
A.
OPT
B.
LRU
C.
FIFO
D.
Clock
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【单选题】用草酸钠作基准物标定高锰酸钾标准溶液时,开始反应速度慢,稍后,反应速度明显加快,这是 起催化作用。
A.
H+
B.
H2C2O4
C.
MnO4-
D.
Mn2+
【单选题】用草酸钠作基准物标定高锰酸钾标准溶液时,开始反应速度慢,稍后,反应速度明显加快,起催化作用的是
A.
氢离子
B.
MnO4-
C.
Mn2+
D.
CO2
【单选题】— What do you think of teaching, Bob? — I find it fun and challenging. It is a job _____ you are doing something serious but interesting. [     ]
A.
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B.
which
C.
when
D.
where
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A.
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【单选题】— What do you think of teaching, Bob? — I find it fun and challenging. It is a job _____ you are doing something serious but interesting. [     ]
A.
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B.
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【单选题】以下哪部作品被称为情节芭蕾结出的最初果实?
A.
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B.
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C.
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D.
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【单选题】用草酸钠作基准物标定高锰酸钾标准溶液时,溶液温度应该控制在
A.
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A.
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B.
Consider that by rank he should pay.
C.
Never offer to pay. It is considered impolite.
D.
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