38.下列哪项不属于激光的特性
<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 38.下列哪项不属于激光的特性<br><br><br>A.方向性好<br>B.亮度高<br>C.相干性高<br>D.单色性好<br>E.机械效应明显<br><br>正确答案：E<br><div id="parserbtn"><input class="parserbtn"onclick="viewparser(1,13671);" type="button" name="parserbtn" value="查看解析" style="height: 23px"></div><br>来自《B18Z专业知识(291题)》试卷<br><br>
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