成考院校在线答案
- 2022-09-12 [多选] <p class="MsoNormal">18、<span style="font-family:宋体">设一阶梯形轴向拉压杆的轴力沿杆轴是变化的，则在发生破坏的截面上</span> <span style="font-family:宋体">（</span><span lang="EN-US"> </span><span style="font-family:宋体">）。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">20、<span style="font-family:宋体">将一钢球放入热油中，它的</span> <span style="font-family:宋体">（</span><span lang="EN-US"> </span><span style="font-family:宋体">）。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">23、<span style="font-family:宋体">在平面图形的几何性质中，</span> <span style="font-family:宋体">（</span><span lang="EN-US"> </span><span style="font-family:宋体">）的值可正、可负、也可为零。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">24、<span style="font-family:宋体">一等直杆在两端承受轴向拉力作用，若其一半段为铜，另一半段为铝，则两段的（</span><span lang="EN-US"> </span><span style="font-family:宋体">）。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">28、<span style="font-family:宋体">连接件剪应力的实用计算是以假设（</span><span lang="EN-US"> </span><span style="font-family:宋体">）为基础的。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">31、<span style="font-family:宋体">一圆截面轴向拉压杆，若其直径增加一倍，则抗拉</span> <span style="font-family:宋体">（</span><span lang="EN-US"> </span><span style="font-family:宋体">）</span> <span style="font-family:宋体">。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">32、<span style="font-family:宋体">细长压杆承受轴向压力</span><span lang="EN-US">F</span><span style="font-family:宋体">的作用，与其临界压力</span><span lang="EN-US">Fcr</span><span style="font-family:宋体">无关的是（</span><span lang="EN-US"> </span><span style="font-family:宋体">）。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">36、<span style="font-family:宋体">在下列论述中，（</span><span lang="EN-US"> </span><span style="font-family:宋体">）是正确的。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">38、<span style="font-family:宋体">平面汇交力系最多可列出的独立平衡方程数为（</span><span lang="EN-US"> </span><span style="font-family:宋体">）。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>
- 2022-09-12 [多选] <p class="MsoNormal">39、<span style="font-family:宋体">平面平行力系、平面汇交力系、平面任意力系的独立的平衡方程的数目分别为（</span><span lang="EN-US"> </span><span style="font-family:宋体">）。</span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span></p>