作业帮 发表于 2019-10-24 09:38:19

北语网院19秋《离散数学》作业_1234

19秋《离散数学》作业_1
奥鹏作业答案可以联系Q Q 761296021
1.[单选题]<img title="1494569953664066082.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00059.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494569953664066082.png" width="730" height="98" style="width: 730px; height: 98px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
2.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4784.jpg"/>
    A.A
    B.B
    C.C
    D.D
3.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4779.jpg"/>
    A.A
    B.B
    C.C
    D.D
4.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4083.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
5.[单选题]<img src="/oxer/datafiles/ots/@tenant/images/2019/1019/1571457579152078841.jpg" title="1571457579152078841.jpg" alt="4788.jpg"/>
    A.A
    B.B
    C.C
    D.D
6.[单选题]<img title="1494490640763028615.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u0018.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494490640763028615.png" width="406" height="66" style="width: 406px; height: 66px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
7.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4069.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
8.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4809.jpg"/>
    A.A
    B.B
    C.C
    D.D
9.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4072.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
10.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4773.jpg"/>
    A.A
    B.B
    C.C
    D.D
11.[单选题]设命题公式G=(P∧Q)→P,则G是 (      )。
    A.恒假的
    B.恒真的
    C.可满足的
    D.析取范式
12.[单选题]设G是由5个结点组成的完全图,则从G中删去(    )条边可以得到树.
    A.4
    B.5
    C.6
    D.10
13.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4761.jpg"/>
    A.A
    B.B
    C.C
    D.D
14.[单选题]<img src=http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4745.jpg />
    A.A
    B.B
    C.C
    D.D
15.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4812.jpg"/>
    A.A
    B.B
    C.C
    D.D
16.[单选题]<img src=http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4740.jpg />
    A.A
    B.B
    C.C
    D.D
17.[单选题]10 设G为9阶无向图,每个结点度数不是3就是2,则G中至多有          个3度结点
    A.7
    B.8    答案联系q1647861640
    C.9
    D.6
18.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4074.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
19.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4798.jpg"/>
    A.A
    B.B
    C.C
    D.D
20.[单选题]在命题演算中,语句为真为假的一种性质称为(      )
    A.真值
    B.陈述句
    C.命题
    D.谓词
21.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4797.jpg"/>
    A.A
    B.B
    C.C
    D.D
22.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4741.jpg"/>
    A.A
    B.B
    C.C
    D.D
23.[单选题]<img src=http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4783.jpg />
    A.A
    B.B
    C.C
    D.D
24.[判断题]<img title="1494570985392063222.png" alt="C:Users?Desktop\\u79bb散数学添加题库7.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494570985392063222.png"/>
    A.对
    B.错
25.[判断题]<img title="1494570934159095828.png" alt="C:Users?Desktop\\u79bb散数学添加题库6.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494570934159095828.png"/>
    A.对
    B.错
19秋《离散数学》作业_2
1.[单选题]<img title="1494490489556015696.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00028.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494490489556015696.png" width="382" height="82" style="width: 382px; height: 82px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
2.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4759.jpg"/>
    A.A
    B.B
    C.C
    D.D
3.[单选题]<img title="1494485206150020932.png" alt="C:Users?Desktop\\u79bb散数学添加题库.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494485206150020932.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
4.[单选题]设A、B为集合,A的元素都是B的元素,那么( )
    A.B是A的子集
    B.A是B的子集
    C.A和B是等价的
    D.B的元素也是A的元素
5.[单选题]<img title="1494489657897039549.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u0014.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494489657897039549.png" width="493" height="127" style="width: 493px; height: 127px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
6.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4762.jpg"/>
    A.A
    B.B
    C.C
    D.D
7.[单选题]<img title="1494558695399004339.png" alt="C:Users?Desktop\\u79bb散数学添加题库&.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494558695399004339.png" width="462" height="72" style="width: 462px; height: 72px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
8.[单选题]同类型的代数系统不具有的特征是()
    A.子代数的个数相同
    B.运算个数相同
    C.相同的构成成分
    D.相同元数的运算个数相同
9.[单选题]<img title="1494485720599053292.png" alt="C:Users?Desktop\\u79bb散数学添加题库.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494485720599053292.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
10.[单选题]<img title="1494491792872025510.png" alt="C:Users?Desktop\\u79bb散数学添加题库 .png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494491792872025510.png" width="274" height="255" style="width: 274px; height: 255px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
11.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4777.jpg"/>
    A.A
    B.B
    C.C
    D.D
12.[单选题]<img src=http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4810.jpg />
    A.A
    B.B
    C.C
    D.D
13.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4079.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
14.[单选题]<img src=http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4806.jpg />
    A.A
    B.B
    C.C
    D.D
15.[单选题]<img title="1494569776380032365.png" alt="C:Users?Desktop\\u79bb散数学添加题库/.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494569776380032365.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
16.[单选题]<img title="1494485155421015409.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u0004.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494485155421015409.png" width="399" height="134" style="width: 399px; height: 134px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
17.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4785.jpg"/>
    A.A
    B.B
    C.C
    D.D
18.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4778.jpg"/>
    A.A
    B.B
    C.C
    D.D
19.[单选题]<img title="1494569174102099832.png" alt="C:Users?Desktop\\u79bb散数学添加题库,.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494569174102099832.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
20.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4050.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
21.[单选题]至少要去掉多少条边才能将一个10阶完全图变成非连通图(    )
    A.6
    B.9
    C.10
    D.15
22.[单选题]<img title="1494494451364018752.png" alt="C:Users?Desktop\\u79bb散数学添加题库%.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494494451364018752.png" width="459" height="96" style="width: 459px; height: 96px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
23.[单选题]<img title="1494559094875083237.png" alt="C:Users?Desktop\\u79bb散数学添加题库(.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494559094875083237.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
24.[判断题]<img title="1494570334857077161.png" alt="C:Users?Desktop\\u79bb散数学添加题库2.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494570334857077161.png"/>
    A.对
    B.错
25.[判断题]<img title="1494571008209015179.png" alt="C:Users?Desktop\\u79bb散数学添加题库8.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494571008209015179.png"/>
    A.对
    B.错
19秋《离散数学》作业_3
1.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4754.jpg"/>
    A.A
    B.B
    C.C
    D.D
2.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4772.jpg"/>
    A.A
    B.B
    C.C
    D.D
3.[单选题]n个结点、m条边的无向连通图是树当且仅当m=_____。
    A.n+1
    B.n
    C.n-1
    D.2n-1
4.[单选题]<img title="1494491728661096401.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00039.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494491728661096401.png" width="354" height="179" style="width: 354px; height: 179px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
5.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4771.jpg"/>
    A.A
    B.B
    C.C
    D.D
6.[单选题]设 A、B为集合,A的元素都是B的元素,那么(   )。
    A.B是A的子集
    B.A是B的子集
    C.A和B是等价的
    D.B的元素也是A的元素
7.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4064.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
8.[单选题]<img title="1494488225872019188.png" alt="C:Users?Desktop\\u79bb散数学添加题库\f.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494488225872019188.png" width="447" height="141" style="width: 447px; height: 141px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
9.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4070.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
10.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4768.jpg"/>
    A.A
    B.B
    C.C
    D.D
11.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4752.jpg"/>
    A.A
    B.B
    C.C
    D.D
12.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4081.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
13.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4769.jpg"/>
    A.A
    B.B
    C.C
    D.D
14.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4056.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
15.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4781.jpg"/>
    A.A
    B.B
    C.C
    D.D
16.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4795.jpg"/>
    A.A
    B.B
    C.C
    D.D
17.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4076.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
18.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4803.jpg"/>
    A.A
    B.B
    C.C
    D.D
19.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4804.jpg"/>
    A.A
    B.B
    C.C
    D.D
20.[单选题]<img title="1494488430516034948.png" alt="C:Users?Desktop\\u79bb散数学添加题库png.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494488430516034948.png"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
21.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4086.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
22.[单选题]<img title="1494558977524081037.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00048.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494558977524081037.png" width="553" height="214" style="width: 553px; height: 214px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
23.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4770.jpg"/>
    A.A
    B.B
    C.C
    D.D
24.[判断题]<img title="1494570371506062682.png" alt="C:Users?Desktop\\u79bb散数学添加题库3.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494570371506062682.png" width="527" height="51" style="width: 527px; height: 51px;"/>
    A.对
    B.错
25.[判断题]<img title="1494571032292091760.png" alt="C:Users?Desktop\\u79bb散数学添加题库9.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494571032292091760.png"/>
    A.对
    B.错
19秋《离散数学》作业_4
1.[单选题]欧拉回路是(    )
    A.路径
    B.简单回路
    C.既是基本回路也是简单回路
    D.既非基本回路也非简单回路
2.[单选题]<img title="1494571423170020523.png" alt="C:Users?Desktop\\u79bb散数学添加题库9.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494571423170020523.png" width="569" height="196" style="width: 569px; height: 196px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
3.[单选题]I是一个整数集,*是加法运算,代数系统<I,*>中的幺元是(    )
    A.0
    B.1
    C.2
    D.3
4.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4057.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
5.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4751.jpg"/>
    A.A
    B.B
    C.C
    D.D
6.[单选题]在5个结点的二元完全树中,若有4条边,则有 (   )片树叶。
    A.2
    B.3
    C.5
    D.4
7.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4082.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
8.[单选题]<img title="1494488705415092660.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00019.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494488705415092660.png" width="579" height="182" style="width: 579px; height: 182px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
9.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4750.jpg"/>
    A.A
    B.B
    C.C
    D.D
10.[单选题]<img title="1494571575842020965.png" alt="C:Users?Desktop\\u79bb散数学添加题库;.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494571575842020965.png" width="474" height="184" style="width: 474px; height: 184px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
11.[单选题]<img title="1494569285982010594.png" alt="C:Users?Desktop\\u79bb散数学添加题库..png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494569285982010594.png" width="471" height="129" style="width: 471px; height: 129px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
12.[单选题]<img title="1494489749679061432.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u0016.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494489749679061432.png" width="462" height="202" style="width: 462px; height: 202px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
13.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4748.jpg"/>
    A.A
    B.B
    C.C
    D.D
14.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4088.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
15.[单选题]设图G是有6个顶点的连通图,总度数为20,则从G中删去(    )边后使之变成树.
    A.10
    B.5
    C.3
    D.2
16.[单选题]以下哪项属于集合的性质 ( )
    A.无次序性
    B.有限性
    C.无限性
    D.非空性
17.[单选题]<img title="1494558977524081037.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00048.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494558977524081037.png" width="553" height="214" style="width: 553px; height: 214px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
18.[单选题]<img src=http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4736.jpg />
    A.A
    B.B
    C.C
    D.D
19.[单选题]<img title="1494489541916058811.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u0012.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494489541916058811.png" width="469" height="71" style="width: 469px; height: 71px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
20.[单选题]<img title="1494489464340067790.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u0001.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494489464340067790.png" width="345" height="99" style="width: 345px; height: 99px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
21.[单选题]<img title="1494559042410090398.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00049.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494559042410090398.png" width="663" height="116" style="width: 663px; height: 116px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
22.[单选题]<img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/4055.jpg"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
23.[单选题]<img title="1494491671387080939.png" alt="C:Users?Desktop\\u79bb散数学添加题库\u00038.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0511/1494491671387080939.png" width="428" height="105" style="width: 428px; height: 105px;"/>
    A.(A)
    B.(B)
    C.(C)
    D.(D)
24.[判断题]<img title="1494570500842021215.png" alt="C:Users?Desktop\\u79bb散数学添加题库5.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494570500842021215.png" width="592" height="36" style="width: 592px; height: 36px;"/>
    A.对
    B.错
25.[判断题]<img title="1494570478724023960.png" alt="C:Users?Desktop\\u79bb散数学添加题库4.png" src="http://otsstatic.chinaedu.net/ots/blcu/images/2017/0512/1494570478724023960.png" width="401" height="30" style="width: 401px; height: 30px;"/>
    A.对
    B.错
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