65.根据光的照度定律，点光源垂直照射物体时，照度与
<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 65.根据光的照度定律，点光源垂直照射物体时，照度与<br><br><br>A.光源距离的平方成反比<br>B.光源距离成反比<br>C.光源距离成正比<br>D.光源距离的平方成正比<br>E.距离无关<br><br>正确答案：A<br><div id="parserbtn"><input class="parserbtn"onclick="viewparser(1,18040);" type="button" name="parserbtn" value="查看解析" style="height: 23px"></div><br>来自《K1C18康复概论/人体发育/康复工程/OT/ST/理疗/疾病康复(中级152题)》试卷<br><br>
页:
[1]