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单选题 已知某电路的真值表如下,该电路的逻辑表达式为
A. 
B. 
C. 
D. 
学科：电子技术B—2024
时间：2024-06-16 16:06:24
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题目1单选题
当逻辑函数有n个变量时,共有()个变量取值组合A. 2nB. nC. <img src="https://tihai-oss-cloud.itihey.com/img/2815196056c8a054360d9b1c86374fd5.webp">D. <img src="https://tihai-oss-cloud.itihey.com/img/6d12a9cdf0cb8e3ea2d5a2746f5060bb.webp">
题目2单选题
在( )输入情况下"与"运算的结果是逻辑1A. 全部输入是0B. 任一输入是0C. 仅一输入是0D. 全部输入是1
题目3单选题
数字电路中的工作信号为( )A. 随时间连续变化的电信号B. 脉冲信号C. 直流信号D. 交流信号
题目4单选题
下列几种逻辑门,能做反相器的是A. 与非门B. 与门C. 或门D. 以上皆可
题目5单选题
如图所示波形关系的函数表达式为<img src="https://tihai-oss-cloud.itihey.com/img/5ff52b298976f7ce34963ecd918dc916.png">A. Y=ABB. Y=A+BC. Y=A异或BD. Y=A同或B
题目6单选题
<img src="https://tihai-oss-cloud.itihey.com/img/fc61a36d012f691254bfddc8e6f48da5.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/3491c0db0540caf8ed8719b3e724de39.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/45470cd6687339a9260cc0659361ad9c.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/4de8122f12de9ce56b0270261b23e80f.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/d523a19f7b7e2cceca3b8739b2d97273.png">
题目7单选题
已知某组合逻辑电路图如图所示,则四个选项中哪个能表示输出量Y<img src="https://tihai-oss-cloud.itihey.com/img/00a89ad912229f0aa15d68e87162a372.PNG">A. <img src="https://tihai-oss-cloud.itihey.com/img/8755bb9dab3871f3093f0816b3587c04.PNG">B. <img src="https://tihai-oss-cloud.itihey.com/img/0bdf73e76cb21220f6c10d01b76cc4c7.PNG">C. <img src="https://tihai-oss-cloud.itihey.com/img/009e9f6c2dab0c2a7886a19987be9bcb.PNG">D. <img src="https://tihai-oss-cloud.itihey.com/img/8a003b918bb58a3df2efcbdc5453e2e2.PNG">
题目8单选题
已知某电路的真值表如下,该电路的逻辑表达式为<img src="https://tihai-oss-cloud.itihey.com/img/c1890e723a07281d8ab38c48419e4c78.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/6b74322c9e3c6a66b54b78abe9ac00b5.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/bb9ff5dc2988d4c4d4ea89393566f5ee.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/9a699b6e6942a546897fc127e8d6462b.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/c5123c5be44977d83d35801046946754.png">
题目9单选题
下列逻辑式,正确的是A. A(A+B)=BB. A(A+B)=AC. A(A+B)=ABD. (A+B)(A+D)=A+BC
题目10单选题
已知逻辑函数<img src="https://tihai-oss-cloud.itihey.com/img/7794e80f5bf99109e81ee24c206cc6b5.png">,与其相等的逻辑函数是A. <img src="https://tihai-oss-cloud.itihey.com/img/26597b5ae9b5be994ac8b4ade1a2b7c4.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/efbf88614ef45f3d0cbe25e350e55b07.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/b6b4468fa96caaae470754e7b1d1c7c5.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/d0a21e017207532b207ab651760ada7d.png">
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