23．腰段脊柱受应力最大的部位是在
<script>function viewparser(etype,eid){showWindow("showMsgBox", "plugin.php?id=tpgao_questionsyn:showMsg&timutype="+etype+"&item="+eid+"&credit=3&mod=sh", "get", 0);
}</script>[普通选择题]<br> 题目 23．腰段脊柱受应力最大的部位是在<br><br><img src=""><br>A.T12～L1和L1~2<br>B.L1~2和L2~3<br>C.L2~3和L3~4<br>D.L4~5和L5～S1<br>E.S1~2和S2~3<br><br>正确答案：D<br><div id="parserbtn"><input class="parserbtn"onclick="viewparser(1,11529);" type="button" name="parserbtn" value="查看解析" style="height: 23px"></div><br>
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