智慧职教: <p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">适筋梁破坏是脆性破坏。</span></span></p><p><br/></p>

<p style="text-align:left"><span style="font-size:16px;font-family:宋体">实践的运行机制是（&nbsp; ）。</span></p><span style="font-size:16px;font-family:宋体"></span><p><br/></p>

<p style="text-indent:19px<strong><span style="font-family: 宋体;font-size: 19px<span style="font-family:宋体在下列四种说法中，选择一种正确的答案。</span> &nbsp;<span style="font-family:宋体（</span></span></strong><strong><span style="font-family: 宋体;font-size: 19px&nbsp; ）</span></strong><strong> </strong>https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/b77fd28130934107bbf54f03e2772cc0.png<strong><span style="font-family: 宋体;font-size: 19px&nbsp;</span></strong><br>

智慧职教: <p><span style="font-family: 宋体; font-size: 16px;">老字号做好生意的前提是</span><span style="font-family: 宋体; font-size: 16px;">热情周到</span></p><p></p>

<strong><span style="font-family: 宋体;font-size: 19px<span style="font-family:宋体圆盘上四个小孔需标注定位尺寸，其定位尺寸是（</span> </span></strong><strong><span style="font-family: 宋体;font-size: 19px&nbsp;</span></strong><strong><span style="font-family: 宋体;font-size: 19px&nbsp;&nbsp;</span></strong><strong><span style="font-family: 宋体;font-size: 19px<span style="font-family:宋体）</span></span></strong><strong><span style="font-family: 宋体;font-size: 19px&nbsp;https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/7325982780f44a89af1ba0f39ab8d237.png</span></strong>