54.气管和支气管的构成中不包括()。
<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 54.气管和支气管的构成中不包括()。<br><br><img src=""><br>A.软骨<br>B.骨<br>C.肌肉<br>D.结缔组织<br>E.粘膜<br><br>正确答案:B<br><div id="parserbtn"><input class="parserbtn"onclick="viewparser(1,10362);" type="button" name="parserbtn" value="查看解析" style="height: 23px"></div><br>
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