<p style="margin:0pt 0pt 0.0001pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:"Times New Roman""><span class="10" style="font-size:10.5000pt"><span style="font-family:\'Times New Roman\'"><span style="color:#000000"><font face="宋体">我国规定电力标准频率为（</font>  </span></span></span><span class="10" style="font-size:10.5000pt"><span style="font-family:\'Times New Roman\'"><span style="color:#000000">  <font face="宋体">）</font>Hz<font face="宋体">。</font></span></span></span></span></span></p>免费搜答案|可以考资料网|考试试题|考试题库|找答案神器就上可以考(keyikao.com)