成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">34、<span style="font-family:宋体">开环频域性能指标中的相角裕度对应时域性能指标（ ） 。</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">10、<span style="font-family:宋体">已知下列负反馈系统的开环传递函数，应画零度根轨迹的是（ ）。</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">19、<span style="font-family:宋体">关于系统零极点位置对系统性能的影响，下列观点中正确的是（ ）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="text-align:left;line-height:20.0pt; mso-line-height-rule:exactly">23、<span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";color:windowtext">频率的一次调整是（</span><span lang="EN-US" style="color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">21、 同步发电机，三种电势 <img alt="" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205085153_943.png"> 、E′、E″之间的大小关系为( )</p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">37、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">电路元件的<span class="GramE">标么值</span>为（</span><span lang="EN-US" style="color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; color:windowtext">）。</span></p>
- 2022-09-12 [单选] <p class="MsoPlainText" style="line-height:20.0pt;mso-line-height-rule:exactly">28、<span style="mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";color:windowtext">无零序电流分量的不对称短路是（ ）</span><span lang="EN-US" style="font-family:"Times New Roman",serif;color:windowtext"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-left:14.15pt;text-indent:-14.15pt; mso-char-indent-count:-1.35;line-height:20.0pt;mso-line-height-rule:exactly; tab-stops:191.4pt">3、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">已知一节点所带负荷，有功功率为</span><span lang="EN-US">P</span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">，视在功率为</span><span lang="EN-US">S</span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">，则功率因数角</span><span lang="EN-US"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <v:shape id="对象_x0020_61" o:spid="_x0000_i1027" type="#_x0000_t75" style="width:10.2pt;height:12pt" o:ole=""> <v:imagedata src="DLXTFX_DX.files/image008.wmz" o:title=""></v:imagedata> </v:shape></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="对象_x0020_61" DrawAspect="Content" ObjectID="_1618985935"> </o:OLEObject> </xml><![endif]--></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">为（ ）</span><span lang="EN-US"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">6、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:Arial; mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;mso-font-kerning:0pt">近似计算法中，变压器的变比应采用（</span><span style="mso-bidi-font-size:10.5pt;font-family:"Arial",sans-serif;mso-font-kerning: 0pt"> </span><span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei; mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;mso-bidi-font-family: Arial;mso-font-kerning:0pt">）。</span><span style="mso-bidi-font-size:10.5pt; font-family:"Arial",sans-serif;mso-font-kerning:0pt"> </span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">20、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">供电系统短路故障中，短路危害最大的短路类型一般为（</span><span lang="EN-US" style="color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; color:windowtext">）。</span></p>