【单选题】【消耗次数：1】
<img src=https://huaweicloudobs.ahjxjy.cn/9DB6818E19F193402DF3E0B37CA2CA02.png title=13.png alt=13.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/3F5903398AB2101B4F9A5FBC9B30EF72.png title=13-1.png alt=13-1.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/506609B06EA0F870E162077FE48CD89C.png title=13-2.png alt=13-2.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/962DF2BF0E961F23E980AA3A805E0347.png title=13-3.png alt=13-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/529BFC9839FC3A3512F45A6C9218B58F.png title=13-4.png alt=13-4.png/>
参考答案：
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相关题目
【单选题】
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<img src=https://huaweicloudobs.ahjxjy.cn/E46CCC1C6B88F6974F4E538521976BE6.png title=13-4.png alt=13-4.png/>
【单选题】
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<img src=https://huaweicloudobs.ahjxjy.cn/BAEBD18BE3FBC5E8254CF48F1A8E6E07.png title=13-1.png alt=13-1.png/>
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【单选题】
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<img src=https://huaweicloudobs.ahjxjy.cn/C3BF69FDD6FA7FAE17279CA7CC31B4FE.png title=13-2.png alt=13-2.png/>
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【单选题】
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<img src=https://huaweicloudobs.ahjxjy.cn/F8A36EE6835C30A2A2E121B0598773EE.png title=13-2.png alt=13-2.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/9BF8042294C2E45BFEAE388B0ADC9B2D.png title=13-4.png alt=13-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/60F98CA5554741F1DEA9085409385EA2.png title=13.png alt=13.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/0D5DC44E2A9783FAB97308C7F431F9F8.png title=13-1.png alt=13-1.png/>
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④
<img src=https://huaweicloudobs.ahjxjy.cn/8B086C570E6AB4B99FEB70616007DA2A.png title=13-4.png alt=13-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/004BC97E8DB786F3C6F549BBDFC2D2C7.png title=13.png alt=13.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/F3856AE82C48A046A0BD4FD193D86423.png title=13-1.png alt=13-1.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/E9F0F07466DF631ECAFF3130CCDD9062.png title=13-2.png alt=13-2.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/B3158789774DDB0D20E99FB9A6E211D8.png title=13-3.png alt=13-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/9437BC588363C3E87CD399749228BC52.png title=13-4.png alt=13-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/B0A88A992A86770F54ED21867DEC4C4F.png title=13.png alt=13.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/DB0B4335AD05C8132616FCE9844F224A.png title=13-2.png alt=13-2.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/27747483D8351F915943507D33EB84BB.png title=13-4.png alt=13-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/499959E9A6E65C7680607B8B1B35D0FD.png title=13.png alt=13.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/8EB86099B2782544B545F5F36202AEBA.png title=13-1.png alt=13-1.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/ADAE29D6E081E3816DF5CC8F8A9D4700.png title=13-2.png alt=13-2.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/1B7EEFC7178F0263E22AE2275FE5E0C1.png title=13-3.png alt=13-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/482D2D9753564060BEC708FF02B4A7B0.png title=13-4.png alt=13-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/922EBCA9EBD8F262F08CA99CDA42101E.png title=13-B.png alt=13-B.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/50C5E804B0D8AFE9E44AFE94738708EF.png title=13-1.png alt=13-1.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/D5364141D72B00A7CF427E6F5813EB67.png title=13-2.png alt=13-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/E3D6A940C94FD855006794FC3132EBE8.png title=13-3.png alt=13-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B71A78CCD7F2289A57A89918B472A3EE.png title=13-4.png alt=13-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E8A3B6E0BABD79C0A4B1085F13E8AECA.png title=3.png alt=3.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CCB262151FF70754533754FDFC3319C8.png title=3-1.png alt=3-1.png/>
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<img src=https://huaweicloudobs.ahjxjy.cn/83A1AEA490DB4820951AF907108F79C1.png title=3-2.png alt=3-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/74B78581095A22F88DDA8A4CAA34704C.png title=3-3.png alt=3-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CC7D345862A2E284E535841FF229A55E.png title=3-4.png alt=3-4.png/>
随机题目
【单选题】
下列命题联结词集合中，是最小联结词组的是（ ）
①
{┐，<imgwidth="20"height="11"style="-aw-left-pos:0pt;-aw-rel-hpos:character;-aw-rel-vpos:line;-aw-top-pos:0pt;-aw-wrap-type:inline"src="../uploadfiles/word/lsss001.files/image077.png">}
②
{┐，∨，∧}
③
{┐，∧}
④
{∧，→}
【单选题】
下列函数中为双射的是（ ）
①
f：Z→Z,f(j)=j(mod)
②
f：N→N,f(j)=<imgwidth="71"height="46"src="../uploadfiles/word/lsss002.files/image007.png">
③
f：Z→N,f(j)=|2j|+1
④
f：R→R,f(r)=2r-15
【单选题】
设A（x）:x是人，B（x）：x犯错误，命题“没有不犯错误的人”符号化为（ ）
①
<imgwidth="98"height="20"src="../uploadfiles/word/lsss002.files/image014.png">
②
┐<imgwidth="68"height="20"src="../uploadfiles/word/lsss002.files/image015.png">┐B（x））
③
┐<imgwidth="96"height="20"src="../uploadfiles/word/lsss002.files/image016.png">
④
┐<imgwidth="63"height="20"src="../uploadfiles/word/lsss002.files/image017.png">┐B(x))
【单选题】
设<imgwidth="50"height="17"src="http://wljy.whut.edu.cn//uploadfiles/word/lsss002.files/image018.png">，则有（ ）
①
<imgwidth="35"height="16"src="../uploadfiles/word/lsss002.files/image019.png">
②
<imgwidth="37"height="18"src="../uploadfiles/word/lsss002.files/image020.png">
③
<imgwidth="37"height="19"src="../uploadfiles/word/lsss002.files/image021.png">
④
<imgwidth="38"height="20"src="../uploadfiles/word/lsss002.files/image022.png">
【单选题】
设论域为整数集，下列真值为真的公式是（ ）
①
<imgwidth="116"height="20"src="../uploadfiles/word/lsss001.files/image023.png">
②
<imgwidth="116"height="20"src="../uploadfiles/word/lsss001.files/image024.png">
③
<imgwidth="119"height="20"src="../uploadfiles/word/lsss001.files/image025.png">
④
<imgwidth="134"height="20"src="../uploadfiles/word/lsss001.files/image026.png">
【单选题】
设A=<imgwidth="25"height="21"src="http://wljy.whut.edu.cn//uploadfiles/word/lsss001.files/image067.png">，B=P（P（A）），以下不正确的式子是（ ）
①
<imgwidth="169"height="21"src="../uploadfiles/word/lsss001.files/image068.png">包含于B
②
<imgwidth="55"height="21"src="../uploadfiles/word/lsss001.files/image069.png">包含于B
③
<imgwidth="76"height="20"src="../uploadfiles/word/lsss001.files/image070.png">包括于B
④
<imgwidth="129"height="23"src="../uploadfiles/word/lsss001.files/image071.png">包含于B
【单选题】
若R和S是集合A上的两个关系，则下述结论正确的是（ ）
①
若R和S是自反的，则R∩S是自反的
②
若R和S是对称的，则R<imgwidth="11"height="11"src="../uploadfiles/word/lsss002.files/image036.png">S是对称的
③
若R和S是反对称的，则R<imgwidth="11"height="11"src="../uploadfiles/word/lsss002.files/image037.png">S是反对称的
④
若R和S是传递的，则R∪S是传递的
【单选题】
下列式子正确的是（ ）
①
（A－B）－C=A－（B∪C）
②
A－（B∪C）=（A－B）∪C
③
~（A－B）=~（B－A）
④
<imgwidth="90"height="18"src="../uploadfiles/word/lsss001.files/image037.png">
【单选题】
下列四个格，是分配格的是（ ）
①
<imgwidth="100"height="117"src="../uploadfiles/word/lsss001.files/image038.png">
②
<imgwidth="100"height="111"src="../uploadfiles/word/lsss001.files/image039.png">
③
<imgwidth="106"height="115"src="../uploadfiles/word/lsss001.files/image040.png">
④
<imgwidth="98"height="109"src="../uploadfiles/word/lsss001.files/image041.png">
【单选题】
下列等价式正确的是（）
①
┐<imgwidth="83"height="20"src="../uploadfiles/word/lsss001.files/image001.png">┐A
②
<imgwidth="147"height="20"src="../uploadfiles/word/lsss001.files/image002.png">
③
┐<imgwidth="86"height="20"src="../uploadfiles/word/lsss001.files/image003.png">┐A
④
<imgwidth="248"height="20"src="../uploadfiles/word/lsss001.files/image004.png">