試題1

在數據庫管理系統(tǒng)中， （  ） 不屬于安全性控制機制。
A、完整性約束
B、視圖
C、密碼驗證
D、用戶授權

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試題2

可用于數字簽名的算法是（） 。
A．RSA
B．IDEA
C．RC4
D．MD5

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試題3

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試題4

why have formal documents 
first, writing the decisions down is essential.Only when one writes do the gaps appear and the    (1)    protrude(突出).The act of writing turns out to require hundreds of mini-decisions.and it is the existence of these that distinguishes clear.exact policies from fuzzy ones.
Second.the documents will communicate the decisions to others. The manager will be continually amazed that poliaes he took for common knowledge are totally unknown by some member of his team . Since his fundamentaljob is to keep everybody going in the  (2)directon. his chief daily task will be communication, not decision-making,and his documents will immensely   (3)   this load.
Finally.a manager,s documents give him a data base and checklist. By reviewing them (4)he sees where he is. and he sees what changes of emphasis or shifts in direction are needed.
The task of the manager is to develop a plan and then to realize it. But only the written plan is precise and communicable. Such a plan consists of documents on what.when. how much.where.and who.This small set of critical documents  (5)  much of the manager.s   work.if their comprehensive and critical nature is recognized in the beginning. the manager can approach them as friendly tools rather than annoying busywork. He will set his direction much more crisply and quickly by doing so.
（1）A.inconsistencies
B.consistencies
C.steadiness
D.adaptability
（2）A.other
B.different
C.another
D.same
（3）A.extend
B.broaden
C.lighten
D.release
（4）A.periodically
B.occasionally
C.infrequently
D.rarely
（5）A.decides
B.encapsulates
C.realizes
D.recognizes

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試題5

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試題6

電視系統(tǒng)采用的顏色空間中，其亮度信號和色度信號是相分離的。下列顏色空間中,（ ）顏色空間不屬于電視系統(tǒng)的顏色空間。
A、YUV
B、YIQ
C、YcbCr
D、HSL

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試題7

集合 （  ）。
A、可用正規(guī)式“ ”表示
B、不能用正規(guī)式表示，但可用非確定的有限自動機識別
C、可用正規(guī)式“ ”表示
D、不能用正規(guī)式表示，但可用上下文無關文法表示

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試題8

在面向對象方法中，（1）是父類和子類之間共享數據和方法的機制。子類在原有父類接口的基礎上，用適合于自己要求的實現去置換父類中的相應實現稱為（2）。
（1）A．封裝
B．繼承
C．覆蓋
D．多態(tài)
（2）A．封裝
B．繼承
C．覆蓋
D．多態(tài)

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試題9

輸入受限的雙端隊列是指元素只能從隊列的一端輸入，但可以從隊列的兩端輸出，如下圖所示。若有8、1、4、2依次進入輸入受限的雙端隊列，則得不到輸出序列 （ ） 。
A、2、8、1、4
B、1、4、8、2
C、4、2、1、8
D、2、1、4、8

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試題10

面向對象開發(fā)方法的基本思想是盡可能按照人類認識客觀世界的方法來分析和解決問 題，（ ）方法不屬于面向對象方法。
A、Booch
B、Coad
C、OMT
D、Jackson

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