成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal" align="left" style="margin-bottom:7.5pt;text-align:left; mso-pagination:widow-orphan;background:white">6、<span lang="EN-US" style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Arial;color:windowtext; mso-font-kerning:0pt">“</span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-bidi-font-family:Arial;color:windowtext;mso-font-kerning:0pt">如果<span lang="EN-US">1+1≠3</span>，则<span lang="EN-US">2+2≠4”</span>是真命题。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" align="left" style="margin-bottom:7.5pt;text-align:left; mso-pagination:widow-orphan;background:white">20、<span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-bidi-font-family:Arial;color:windowtext;mso-font-kerning: 0pt">代数系统〈<span lang="EN-US">G</span>，<span lang="EN-US">∘</span>〉为群的条件是存在零元素。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" align="left" style="margin-bottom:7.5pt;text-align:left; mso-pagination:widow-orphan;background:white">3、<span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">连通且不含圈的图称为树。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">27、<span style="font-family:宋体">集合A={1，2，…，10}上的关系R={<x，y>|x+y=10，x∈A，y∈A}，则R的性质是（ ）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">22、<span style="font-family:宋体">设<A，?，*>是环，则下列说法不正确的是（ ）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">21、<span style="font-family:宋体">设集合A={a,b, c}上的关系如下，具有传递性的是（ ）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">37、<span style="font-family:宋体">下列命题为假命题的是（ ）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">37、<span style="font-family:宋体">设M={x|f1(x)=0},N={x|f2(x)=0}，则方程f1(x)·f2(x)=0的解为（ ）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">31、<span style="font-family:宋体">设个体域是整数集，则下列命题的真值为真的是（ ）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">24、<span style="font-family:宋体">设有代数系统G=〈A，*〉，其中A是所有命题公式的集合，*为命题公式的合取运算，则G的幺元是（ ）</span></p>