4.当膝屈曲挛缩达到多少度时会出现短腿步态？（）
<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 4.当膝屈曲挛缩达到多少度时会出现短腿步态？（）<br><br><img src=""><br>A.＞10°<br>B.＞20°<br>C.＞30°<br>D.＞35°<br>E.＞40°<br><br>正确答案：D<br><div id="parserbtn"><input class="parserbtn"onclick="viewparser(1,5412);" type="button" name="parserbtn" value="查看解析" style="height: 23px"></div><br>
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