《数字逻辑》武汉理工大学20春作业二
数字逻辑_作业二1.[多选题] 在下图所示电路中,电路______的输出为高电平。
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A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="105" height="47" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112078.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="124" height="44" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112081.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="107" height="42" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112084.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="127" height="54" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112087.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
正确答案:——ABD——
2.[多选题] 下面逻辑式中,正确的是______。
A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">A</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="20" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112566.png"></span>+BD+CDE+<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="82" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112597.png"></span>+D<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">A</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="252" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112625.png"></span> <o:p></o:p>
C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="185" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112650.png"></span>A⊙B⊙C⊙D⊙E<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
D.<p class="MsoNormal" style="display:inline;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">ABCD+</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="64" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj11.files/szlj112689.png"></span>=1<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
正确答案:——ABC——
3.[判断题] 用基本门电路构成的逻辑电路就是组合逻辑电路。
A.正确
B.错误
正确答案:——B——
4.[判断题] 若(A,B)为相容状态时,(B,C)也为相容状态对,则(A,B,C,)构成一个相容类。( )
A.正确
B.错误
正确答案:————
5.[判断题] 奇校验能查出奇数个错。
A.正确
B.错误
正确答案:————
6.[判断题] 脉冲异步时序逻辑电路与同步时序逻辑电路的主要区别是输入为脉冲信号。( )
A.正确
B.错误
正确答案:————
7.[判断题] 米里型电路状态表的读法是,处于状态y的同步时序电路,输出为Z;当输入为x时,在时钟脉冲作用下,电路进入次态 。( )
A.正确
B.错误
正确答案:————
8.[单选题] 3变量逻辑函数有______个最小项。
A.2
B.4
C.8
D.16
正确答案:————
9.[单选题] 要使与非门的输出为0,输入应满足______。
A. 全为0
B. 全为1
C. 至少一个为1
D. 至少一个为0
正确答案:————
10.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">n变量的逻辑函数,</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="25" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj044884.png"></span>为最小项,则有<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="52" height="60" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj044914.png"></span>=______。<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
A.0
B.1
C.m
D.n
正确答案:————
11.[单选题] N个触发器可以构成最大计数长度(进制数)为______的计数器。
A.N
B.2N
C.N2
D.2N
正确答案:————
12.[单选题] 某4变量卡诺图中有9个“0”方格7个“1”方格,则相应的标准与或表达式中共有多少个与项______?
A.9
B.7
C.16
D.不能确定
正确答案:————
13.[单选题] 一位8421BCD码计数器至少需要______个触发器。
A.3
B.4
C.5
D.10
正确答案:————
14.[单选题] 构成时序逻辑电路的基本单元最______。
A.编码器
B.数据选择器
C.数值比较器
D.触发器
正确答案:————
15.[单选题] 在下列逻辑部件中,不属于组合逻辑部件的是______。
A.译码器
B.编码器
C.全加器
D.寄存器
正确答案:————
16.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">逻辑项</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103931.png"></span>的相邻项是______。<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="63" height="23" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103947.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
B.<p class="p" align="justify" style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:justify;text-justify:inter-ideograph;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103975.png"></span> <o:p></o:p>
C.<p class="p" align="justify" style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:justify;text-justify:inter-ideograph;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj104004.png"></span> <o:p></o:p>
D.<p class="p" align="justify" style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:justify;text-justify:inter-ideograph;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj104033.png"></span> <o:p></o:p>
正确答案:————
17.[单选题] 在情况______下,与非门的输出结果是逻辑0。
A.输入全部为0
B.输入至少有一个0
C.输入仅有一个0
D.输入全部为1
正确答案:————
18.[单选题] 下列逻辑功能器件中______是译码器。
A.74LS00
B.74LS48
C.74LS138
D.74LS151
正确答案:————
19.[单选题] 数字系统中,采用______可以将减法运算转化为加法运算。 q7612960 21
A.原码
B.补码
C.Gray码
D.反码
正确答案:————
20.[单选题] 异或门在两输入信号都为逻辑1电平时,其输出为逻辑______电平。
A.0电平
B.1电平
C.不固定
D.没有输出
正确答案:————
21.[单选题] 下列触发器中______具有约束条件。
A.RS触发器
B.D触发器
C.JK触发器
D.T触发器
正确答案:————
22.[单选题] 3变量逻辑函数有______个最小项。
A.2
B.4
C.8
D.16
正确答案:————
23.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">逻辑函数F(A,B,C)=</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="39" height="34" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj03946.png"></span>m(1,2,3,4,7)可以表示成______。<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
A.<p class="MsoNormal" style="display:inline;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">F=</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="42" height="34" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj03997.png"></span>M(0,5,6)<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
B.<p class="MsoNormal" style="display:inline;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">F=A</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="22" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj031033.png"></span>B<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="22" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj031057.png"></span>C<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
C.<p class="MsoNormal" style="display:inline;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">F=A</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="22" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj031086.png"></span>B<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="22" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj031110.png"></span>C+<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="20" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj031135.png"></span>B<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
D.<p class="MsoNormal" style="display:inline;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">F=A</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="22" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj031164.png"></span>B<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="22" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj03.files/szlj031188.png"></span>C+BC<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
正确答案:————
24.[单选题] 下列逻辑功能器件中______是译码器。
A.74LS00
B.74LS48
C.74LS138
D.74LS151
正确答案:————
25.[单选题] 构成时序逻辑电路的基本单元最______。
A.编码器
B.数据选择器
C.数值比较器
D.触发器
正确答案:————
26.[单选题] 下列触发器中,没有约束条件的是______。
A.基本RS触发器
B.边沿D触发器
C.同步RS触发器
D.主从RS触发器
正确答案:————
27.[单选题] 在情况______下,与非门的输出结果是逻辑0。
A.输入全部为0
B.输入至少有一个0
C.输入仅有一个0
D.输入全部为1
正确答案:————
28.[单选题] <p class="MsoNormal"> <span style="font-family:Microsoft Yahei;font-size:10.5000pt;">根据给定的真值表判断F表示的门电路为:______。</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;"> </span>
<p class="MsoNormal" align="center" style="text-align:center;"> <span style="font-family:Microsoft Yahei;font-size:10.5000pt;"><img width="215" height="143" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj043328.png" /></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;"></span>
A. 与门
B. 或门
C. 与非门
D. 或非门
正确答案:————
29.[单选题] 在情况______下,与非门的输出结果是逻辑0。
A.输入全部为0
B.输入至少有一个0
C.输入仅有一个0
D.输入全部为1
正确答案:————
30.[单选题] 在下图所示电路中,电路______的输出不为高电平。
A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="100" height="45" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj056501.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="123" height="45" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj056504.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="112" height="48" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj056507.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="124" height="59" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj056510.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
正确答案:————
31.[单选题] <p class="17"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">描述逻辑电路的真值表见表所示,则其逻辑表达式F=______。</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
<p class="17" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="595" height="147" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj01.files/szlj013324.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
A.<p class="17"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="89" height="33" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj01.files/szlj013327.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
B.<p class="17"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="79" height="37" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj01.files/szlj013330.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
C.<p class="17"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="52" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj01.files/szlj013333.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
D.<p class="17"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="58" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj01.files/szlj013336.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
正确答案:————
32.[单选题] 构成时序逻辑电路的基本单元是______。
A.编码器
B.数据选择器
C.数值比较器
D.触发器
正确答案:————
33.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">逻辑项</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj043806.png"></span>的相邻项是______。<span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
A.<p class="16" style="text-indent:0.0000pt;mso-char-indent-count:0.0000;mso-pagination:widow-orphan;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="24" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj043847.png"></span> <o:p></o:p>
B.<p class="p"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj043876.png"></span> <o:p></o:p>
C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj043905.png"></span> <o:p></o:p>
D.<p class="p"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="62" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj043934.png"></span> <o:p></o:p>
正确答案:————
34.[单选题] 下列各函数等式中无冒险现象的函数式有______。
A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="104" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj055399.png"></span> <span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="130" height="25" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj055425.png"></span> <span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
C.<p class="MsoNormal" style="layout-grid-mode:char;line-height:12.0000pt;" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="165" height="25" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj055451.png"></span> <o:p></o:p>
D.<p class="MsoNormal" style="layout-grid-mode:char;line-height:12.0000pt;" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="165" height="25" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj055476.png"></span> <o:p></o:p>
正确答案:————
35.[单选题] 下列触发器中______具有约束条件。
A.RS触发器
B.D触发器
C.JK触发器
D.T触发器
正确答案:————
36.[单选题] 实现两个4位二进制数相乘的组合电路,应有______输出函数。
A.4
B.8
C.10
D.12
正确答案:————
37.[单选题] N个触发器可以构成最大计数长度(进制数)为______的计数器。
A.N
B.2N
C.N2
D.2N
正确答案:————
38.[单选题] <p class="MsoNormal" style="margin-left:21.0000pt;text-indent:-21.0000pt;mso-char-indent-count:-2.0000;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">描述逻辑电路的真值表见下表所示,则其逻辑表达式F=______。</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
<p class="MsoNormal" align="center" style="margin-left:21.0000pt;text-indent:-21.0000pt;mso-char-indent-count:-2.0000;text-align:center;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="594" height="142" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103354.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
A.<p class="16" style="text-indent:0.0000pt;mso-char-indent-count:0.0000;mso-pagination:widow-orphan;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="77" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103382.png"></span> <o:p></o:p>
B.<p class="p" align="justify" style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:justify;text-justify:inter-ideograph;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="79" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103411.png"></span> <o:p></o:p>
C.<p class="p" align="justify" style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:justify;text-justify:inter-ideograph;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="52" height="22" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103440.png"></span> <o:p></o:p>
D.<p class="p" align="justify" style="margin-top:0.0000pt;margin-bottom:0.0000pt;text-align:justify;text-justify:inter-ideograph;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="52" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj10.files/szlj103469.png"></span> <o:p></o:p>
正确答案:————
39.[单选题] <p class="MsoNormal" style="margin-left:21.0000pt;text-indent:-21.0000pt;mso-char-indent-count:-2.0000;"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">描述逻辑电路的真值表见表所示,则其逻辑表达式F=______。</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
<p class="MsoNormal" align="center" style="margin-left:21.0000pt;text-indent:-21.0000pt;mso-char-indent-count:-2.0000;text-align:center;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="590" height="138" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj02.files/szlj023817.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
A.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="85" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj02.files/szlj023820.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
B.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="89" height="33" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj02.files/szlj023823.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
C.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="53" height="28" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj02.files/szlj023826.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
D.<p class="MsoNormal" style="display:inline;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="64" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj02.files/szlj023829.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
正确答案:————
40.[单选题] <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;">当图所示的虚线框内为______时,可以实现D触发器转换为T触发器。</span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span>
<p class="MsoNormal" align="center" style="text-align:center;"><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><img width="210" height="120" src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj04.files/szlj044402.png"></span><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p> </o:p></span>
A.异或门
B.同或门
C.或非门
D.与非门
正确答案:————
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