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【单选题】
对批处理操作系统首先要考虑的问题是( )。A.
灵活性和可适应性
B.
交互性和相应时间
C.
周转时间和系统吞吐量
D.
实时性和可靠性
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举一反三
【单选题】During the early stages of the civil rights movement, the major integration strategy initiated by the Congress of Racial Equality was known as ____ at bus stations in the South.
A.
Free speech
B.
sit-ins at lunch counters
C.
Teach-ins at interstate train stations
D.
freedom rides
【单选题】A rabid animal is most dangerous during the early stage of the disease because______.
A.
it becomes restless, nervous and violent
B.
its bite is fatal
C.
the potential danger of the sick animal may be ignored
D.
it will attack people at any time
【单选题】关于子查询的描述,正确的是
A.
嵌套子查询中，先执行内查询，再执行外查询
B.
嵌套子查询中，先执行内查询，再执行外查询
C.
嵌套子查询中，先执行内查询，再执行外查询
D.
相关子查询中，先执行外查询，再执行内查询
【简答题】沉积岩的形成过程一般分为风化破坏作用、搬运作用、 和 四个阶段。
【单选题】Mr. Anderson used to (jogging) in the (early morning) air (during) (the winter months), but now he has stopped.
A.
jogging
B.
early morning
C.
during
D.
the winter months
【单选题】What was the role of religion at Harvard University during its early years?
A.
It was not influenced by any religion.
B.
It was heavily influenced by one religious group.
C.
It was not dominated by a single religious group.
D.
It was devoted only to religion.
【简答题】During the early years of an asset’s life, a company using an accelerated depreciation method, rather than straight-line, could expect a lower value for: A.Asset turnover. B.Shareholders’ equity. C.As...
【单选题】During the 1800's and early 1900's, new academic disciplines such as chemistry and physics made great headway.
A.
sacrifice
B.
forefront
C.
preconceptions
D.
progress
【多选题】以下关于子查询描述正确的是（）
A.
子查询要用括号括起来
B.
需要返回一个值或一个值列表时，可以用子查询代替一个表达式。可以用子查询返回含有多个列的结果集以代替表或完成与连接查询操作相同的功能
C.
子查询不能检索包含数据类型为text或image的列
D.
子查询中也可以再包含子查询，嵌套最多可以达32层
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