试题1

SMTP传输的邮件报文采用( )格式表示。
A．ASCII
B．ZIP
C．PNP
D．HTML

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试题2

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试题3

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试题4

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试题5

循环链表的主要优点是（ ）。
A、不再需要头指针了
B、已知某个结点的位置后，能很容易找到它的直接前驱结点
C、在进行删除操作后，能保证链表不断开
D、从表中任一结点出发都能遍历整个链表

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试题6

若一棵二叉树的高度（即层数）为h，则该二叉树（ ）。
A．有2^h个结点
B．有2^h-1个结点
C．最少有2^h-1个结点
D．最多有2^h-1个结点

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试题7

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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试题8

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试题9

某指令流水线由5段组成，各段所需要的时间如下图所示。

连续输入10条指令时的吞吐率为（ ）。
A．15/120△t
B．15/50△t
C．15/45△t
D．15/80△t

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试题10

单元测试中，检验模块接口时，不需要考虑( )。
A．测试模块的输入参数和形式参数在个数、属性、单位上是否一致
B．全局变量在各模块中的定义和用法是否一致
C．输入是否改变了形式参数
D．输入参数是否使用了尚未赋值或者尚未初始化的变量

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