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<P align=center><B><FONT color=#ff0000
size=6>2002年度程序员级上午试卷</FONT></B></P></FONT><FONT lang=ZH-CN face=宋体
size=2>
<DIV class=Section1 style="LAYOUT-GRID: 15.6pt none">
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN
style="FONT-FAMILY: 宋体">●数字签名技术可以用于对用户身份或信息的真实性进行验证与鉴定，但是下列的</SPAN><U><SPAN
lang=EN-US> (l) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">行为不能用数字签名技术解决。</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>
(1)</SPAN><SPAN style="FONT-FAMILY: 宋体">：</SPAN><SPAN
lang=EN-US>A</SPAN><SPAN style="FONT-FAMILY: 宋体">．抵赖</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">．伪造</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">．篡改</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">，窃听</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 宋体">●软件是一种</SPAN><U><SPAN lang=EN-US>
(2) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">的产品。为了软件产业的健康发展，应对软件产品的</SPAN><U><SPAN
lang=EN-US> (3) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">上进行保护。</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (2)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、易复制</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、易损坏</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、易开发</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、易使用</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (3)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、</SPAN> <SPAN
style="FONT-FAMILY: 宋体">技术</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、版权</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、开发</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、使用说明</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 宋体">●用户提出需求并提供经费，委托软件公司开发软件。如果双方商定的协议中未涉及软件著作权归属，则软件著作权属于</SPAN><U><SPAN
lang=EN-US> (4) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">所有。</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (4)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、用户</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、软件公司</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、用户、软件公司双方</SPAN><SPAN
lang=EN-US> F</SPAN><SPAN
style="FONT-FAMILY: 宋体">、经裁决所确认的一方</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体">●</SPAN><U><SPAN
lang=EN-US> (5) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">是面向对象程序设计语言不同于其它语言的主要特点。是否建立了丰富的</SPAN><U><SPAN
lang=EN-US> (6) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">是衡量一个面向对象程序设计语言成热与否的一个重要标志。</SPAN><U><SPAN
lang=EN-US> (7) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">是在类及子类之间自动地共享数据和方法的一种机制。</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (5)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、继承性</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、消息传递</SPAN><SPAN lang=EN-US>
C</SPAN><SPAN style="FONT-FAMILY: 宋体">、多态性</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、静态联编</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (6)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、函数库</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、类库</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、类型库</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、方法库</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (7)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、调用</SPAN><SPAN
lang=EN-US> B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、引用</SPAN><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、消息传递</SPAN><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、继承</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 宋体">●前序遍历序列与中序遍历序列相同的二叉树为</SPAN><U><SPAN
lang=EN-US> (8) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">，前序遍历序列与后序遍历序列相同的二叉树为</SPAN><U><SPAN
lang=EN-US> (9) </SPAN></U><SPAN
style="FONT-FAMILY: 宋体">。</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (8)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、根结点无左子树的二叉树</SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 44.1pt"><SPAN
lang=EN-US>B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、根结点无右子树的二叉树</SPAN></P>
<P class=MsoNormal><SPAN
lang=EN-US> C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、只有根结点的二叉树或非叶子结点只有左子树的二叉树</SPAN></P>
<P class=MsoNormal><SPAN
lang=EN-US> D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、只有根结点的二叉树或非叶子结点只有右子树的二叉树</SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US> (9)
A</SPAN><SPAN style="FONT-FAMILY: 宋体">、非叶子结点只有左子树的二叉树</SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 43.35pt"><SPAN
lang=EN-US>B</SPAN><SPAN
style="FONT-FAMILY: 宋体">、只有根结点的二叉树</SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 43.35pt"><SPAN
lang=EN-US>C</SPAN><SPAN
style="FONT-FAMILY: 宋体">、根结点无右子树的二叉树</SPAN></P>
<P class=MsoNormal style="TEXT-INDENT: 43.35pt"><SPAN
lang=EN-US>D</SPAN><SPAN
style="FONT-FAMILY: 宋体">、非叶子结点只有右子树的二叉树</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体">●</SPAN><SPAN
lang=EN-US> </SPAN><SPAN
style="FONT-FAMILY: 宋体">假设一棵二叉树的后序遍历序列为</SPAN><SPAN
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