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【单选题】
顺序栈的元素插入和删除操作,时间复杂度是A.
O(n)
B.
O(1)
C.
O(1)或O(n)
D.
不确定
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举一反三
【单选题】To Help the Kids, Parents Go Back to School For a few years now, every parent of a newborn baby in the South Florida district has received a congratulations packet while still in the hospital that inc...
A.
persuade parents to go back to school
B.
tell how to avoid parents' responsibility
C.
persuade parents to become teachers
D.
sell colorful animal picture books
【单选题】We felt ______ impossible to finish the work without help.
A.
it
B.
that
C.
this
D.
them
【简答题】一般的市场调研报告包括以下九部分,分别是?
【单选题】As a parent,you need to learn how to________your children and learn how to help them develop character and personality. [ ]
A.
bring up
B.
bring down
C.
bring in
D.
bring forward
【简答题】SQL Server中的数据库按用途主要分为两类:()和(),其中()是管理和维护SQL Server所必需的数据库,()则是用户自己创建的数据库。
【单选题】In the few gray years, the author________
A.
felt helpless and sad
B.
had the help from her friends
C.
never lost hope, and believed that everything would change someday
D.
became very nervous and silent
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