东大21春《数字电子技术基础Ⅰ》在线平时作业2答案-东北大学-无忧答案网

作业辅导 发表于 2021-4-19 09:29:00

东大21春《数字电子技术基础Ⅰ》在线平时作业2答案

数字电子技术基础X21春学期《数字电子技术基础Ⅰ》在线平时作业2
1.[单选题]十进制数62对应的十六进制数是（）。
无忧答案网答案资料下载，请参考帮助中心说明
A.（3E）16
B.（36）16
C.（38）16
D.（3D）16
答:——A——
2.[单选题] 对于D触发器，欲使，应使输Qn+1=Qn应使输入D=( )
A.0
B.1
C.Q
D.<div><img height="29" width="18" alt="" src="http://file.open.com.cn/ItemDB/98839/913b4ec9-5bdd-4fd1-97eb-ff46b72e12d6/201192420018649.jpg" /></div>
答:——C——
3.[单选题] 三态门输出高阻状态时，下列说法不正确的是（）
A.用电压表测量指针不动
B.相当于悬空
C.电压不高不低
答:——C——
4.[单选题] 串行加法器的进位信号采用____传递，而并行加法器的进位信号采用____ 传递。
A.超前，逐位
B.逐位，超前
C.逐位，逐位
D.超前，超前
答:————
5.[单选题] <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">测得某逻辑门输入<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">A<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">、<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">B<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">和输出<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">F<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">的波形如图<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">4<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">所示，则<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">F<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">（<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">A<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">，<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">B<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">）的表达式为（<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体"><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt">）<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt"><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt"><div><img height="84" width="197" alt="" src="http://file.open.com.cn/ItemDB/98839/6e5cc844-4daf-4d7f-be70-7c196392e8ec/2011924195058904.jpg"></div>
A.F=AB
B.<div><img height="24" width="58" alt="" src="http://file.open.com.cn/ItemDB/98839/6e5cc844-4daf-4d7f-be70-7c196392e8ec/2011924195144124.jpg"></div>
C.<div><img alt="" src="http://file.open.com.cn/ItemDB/98839/6e5cc844-4daf-4d7f-be70-7c196392e8ec/201192419526765.jpg"></div>
D.F=A⊕B
答:————
6.[单选题] 图示电路完成的逻辑功能是( )<o:p></o:p>(设该电路是CMOS电路) <div><img height="101" width="110" alt="" src="http://file.open.com.cn/ItemDB/98839/182658b8-2c29-48d4-8a7b-deb4d721eb58/2011924194558242.jpg" /></div>
A.0
B.1
C.<div><img height="20" width="41" alt="" src="http://file.open.com.cn/ItemDB/98839/182658b8-2c29-48d4-8a7b-deb4d721eb58/2011924194657853.jpg" /></div>
D.<img height="25" width="25" alt="" src="http://file.open.com.cn/ItemDB/98839/182658b8-2c29-48d4-8a7b-deb4d721eb58/2011924194727228.jpg" />
答:————
7.[单选题] 对于T触发器，若原态 Qn=0，欲使新态Qn+1=1 ，应使输入T= ( )。
A.1或/Q
B.1
C.Q
D.以上都不对
答:————
8.[单选题] 半导体EPROM，写入的内容，可以通过＿擦除。（）
A.紫外线照射
B.电信号
C.口令
D.DOS命令
答:————
9.[单选题] 要使TTL与非门工作在转折区，可使输入端对地外接电阻RI（）
A.＞RON
B.＜ROFF
C.ROFF＜RI＜RON
D.＞ROFF
答:————
10.[单选题] 用二进制码表示指定离散电平的过程称为（）
A.采样
B.量化
C.保持
D.编码
答:————
11.[单选题] <span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">如图<span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman","serif"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">3<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">所示<img height="92" width="297" alt="" src="http://file.open.com.cn/ItemDB/98839/eb319653-138f-4e4a-bc7e-ab81ca663b9c/2011924194154284.jpg" /><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'"> 
A.F=<v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <img height="25" alt="" width="16" src="http://file.open.com.cn/ItemDB/98839/eb319653-138f-4e4a-bc7e-ab81ca663b9c/201192313144328.jpg" /></v:shapetype>B<o:p></o:p>
B.<span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">F=A<v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <img height="23" alt="" width="21" src="http://file.open.com.cn/ItemDB/98839/eb319653-138f-4e4a-bc7e-ab81ca663b9c/2011923131511997.jpg" /></v:shapetype>
C.F=AB
D.<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">F=<img height="22" alt="" width="34" src="http://file.open.com.cn/ItemDB/98839/eb319653-138f-4e4a-bc7e-ab81ca663b9c/2011923131035113.jpg" />
答:————
12.[单选题] .二极管的开关时间主要考虑()。
A.td
B.ton
C.tr
D.toff
答:————
13.[单选题] 寻址容量为16K×8的RAM需要______根地址线。
A.4
B.8
C.14
D.16
答:————
14.[单选题] 四输入端的译码器。其输出端最多为（）。
A.4个
B.8个
C.10个
D.16个
答:————
15.[单选题] 、一个两输入端的门电路，当输入为1和0时，输出不是1的门是（）
A.与非门
B.或门
C.或非门
D.异或门
答:————
16.[单选题] 要产生10个顺序脉冲，若用四位双向移位寄存器CT74LS194来实现，需要（）片
A.3
B.4
C.5
D.10
答:————
17.[单选题] <span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">逻辑函数<img height="19" width="81" alt="" src="http://file.open.com.cn/ItemDB/98839/0be7bf17-2652-4ea8-9fd1-801653a87b6c/201192311357308.jpg" /><span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的对偶式<img height="22" width="72" alt="" src="http://file.open.com.cn/ItemDB/98839/0be7bf17-2652-4ea8-9fd1-801653a87b6c/201192311418355.jpg" />
A.<img height="30" width="96" alt="" src="http://file.open.com.cn/ItemDB/98839/0be7bf17-2652-4ea8-9fd1-801653a87b6c/201192311756300.jpg" /> 更多答案进 ap5u.com南开 q761296021
B.<img height="37" width="120" alt="" src="http://file.open.com.cn/ItemDB/98839/0be7bf17-2652-4ea8-9fd1-801653a87b6c/2011923117312.jpg" />
C.<img height="34" width="106" alt="" src="http://file.open.com.cn/ItemDB/98839/0be7bf17-2652-4ea8-9fd1-801653a87b6c/201192311640141.jpg" />
D.<img height="30" width="81" alt="" src="http://file.open.com.cn/ItemDB/98839/0be7bf17-2652-4ea8-9fd1-801653a87b6c/20119231176236.jpg" />
答:————
18.[单选题] 十进制数118对应的16进制数为（）。
A.76H
B.78H
C.E6H
D.74H
答:————
19.[单选题] 用二进制异步计数器从0做加法，计到十进制数178，则最少需要（）个触发器。
A.2
B.6
C.7
D.8
答:————
20.[单选题] 下列各组数中，是6 进制的是（）。
A.14752
B.62936
C. 53452
D.37481
答:————
21.[判断题] 对边沿JK触发器，在CP为高电平期间，当J=K=1时，状态会翻转一次。
A.错误
B.正确
答:————
22.[判断题] 双积分型A/D转换器的转换精度高、抗干扰能力强，因此常用于数字式仪表中
A.错误
B.正确
答:————
23.[判断题] A/D转换过程中，必然会出现量化误差。
A.错误
B.正确
答:————
24.[判断题] A/D转换过程中，必然会出现量化误差。
A.错误
B.正确
答:————
25.[判断题] 同步触发器存在空翻现象，而边沿触发器和主从触发器克服了空翻
A.错误
B.正确
答:————

转载注明无忧答案网随机作业核对题目后下载答案

页: [1]

无忧答案网's Archiver

东大21春《数字电子技术基础Ⅰ》在线平时作业2答案