成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">10、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning: 0pt">已知矩阵</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:28.0pt;mso-text-raise:-28.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1297" type="#_x0000_t75" style='width:88.2pt;height:63pt' o:ole=""> <v:imagedata src="xxds04.files/image375.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="118" height="84" v:shapes="_x0000_i1297" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image376.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1297" DrawAspect="Content" ObjectID="_1604819078"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">有特征值</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1298" type="#_x0000_t75" style='width:111pt;height:19.2pt' o:ole=""> <v:imagedata src="xxds04.files/image377.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="148" height="26" v:shapes="_x0000_i1298" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image378.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1298" DrawAspect="Content" ObjectID="_1604819079"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">则（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span></p>
- 2022-09-12 [单选] <p class="MsoNormal">27、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设随机变量</span><span lang="EN-US" style="font-size:12.0pt">X</span><span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">的概率密度函数为</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1112" type="#_x0000_t75" style='width:27pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image138.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="36" height="21" v:shapes="_x0000_i1112" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image139.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1112" DrawAspect="Content" ObjectID="_1604819027"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">，且</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:7.0pt;mso-text-raise:-7.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1113" type="#_x0000_t75" style='width:66pt;height:20.4pt' o:ole=""> <v:imagedata src="xxdsb07.files/image140.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="88" height="27" v:shapes="_x0000_i1113" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image141.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1113" DrawAspect="Content" ObjectID="_1604819028"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">，则必有（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">27、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:5.0pt;mso-text-raise: -5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1321" type="#_x0000_t75" style='width:63pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image411.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="84" height="22" v:shapes="_x0000_i1321" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image412.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">，且</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1322" type="#_x0000_t75" style='width:13.2pt;height:13.2pt'> <v:imagedata src="xxdsb11.files/image415.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1322" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image416.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">未知，对均值作区间估计，置信度为</span><span lang="EN-US" style="font-size:12.0pt">95%</span><span style="font-size:12.0pt; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">置信区间是（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:150%">26、<span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt">已知</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1231" type="#_x0000_t75" style='width:25.8pt;height:16.2pt' o:ole=""> <v:imagedata src="xxds04.files/image290.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="34" height="22" v:shapes="_x0000_i1231" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image291.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1231" DrawAspect="Content" ObjectID="_1604819011"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">均为</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1232" type="#_x0000_t75" style='width:10.8pt;height:12pt' o:ole=""> <v:imagedata src="xxds04.files/image292.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="14" height="16" v:shapes="_x0000_i1232" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image293.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1232" DrawAspect="Content" ObjectID="_1604819012"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">阶方阵且</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:2.0pt;mso-text-raise: -2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1233" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds04.files/image250.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1233" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image285.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1233" DrawAspect="Content" ObjectID="_1604819013"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">与</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:2.0pt;mso-text-raise: -2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1234" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds04.files/image294.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1234" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image295.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1234" DrawAspect="Content" ObjectID="_1604819014"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">相似，若</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:2.0pt;mso-text-raise: -2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1235" type="#_x0000_t75" style='width:42pt;height:16.8pt' o:ole=""> <v:imagedata src="xxds04.files/image296.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="56" height="22" v:shapes="_x0000_i1235" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image297.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1235" DrawAspect="Content" ObjectID="_1604819015"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">，则</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:2.0pt;mso-text-raise: -2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1236" type="#_x0000_t75" style='width:18pt;height:16.8pt' o:ole=""> <v:imagedata src="xxds04.files/image298.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="24" height="22" v:shapes="_x0000_i1236" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image299.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1236" DrawAspect="Content" ObjectID="_1604819016"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">为（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">3、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">设总体</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:5.0pt;mso-text-raise: -5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1122" type="#_x0000_t75" style='width:47.4pt;height:15pt'> <v:imagedata src="xxdsb11.files/image169.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="63" height="20" v:shapes="_x0000_i1122" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image170.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">，则</span><span lang="EN-US" style="font-size:12.0pt;position:relative;top:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1123" type="#_x0000_t75" style='width:9pt;height:10.8pt'> <v:imagedata src="xxdsb11.files/image171.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="12" height="14" v:shapes="_x0000_i1123" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image172.png"> <!--[endif]--></span><span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">的矩估计和极大似然估计分别为（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly">37、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_99" o:spid="_x0000_i1124" type="#_x0000_t75" style='width:432.6pt;height:22.2pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds02.files/image106.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="577" height="30" v:shapes="图片_x0020_99" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image106.png"> <!--[endif]--></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:150%">3、<span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt">下列向量组中（</span><span style="font-size:12.0pt;line-height:150%;mso-font-kerning:0pt"> </span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning: 0pt">）线性无关</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%; mso-font-kerning:0pt">. <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">24、<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">下列命题中错误的是（</span><span style="font-size:12.0pt"> </span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:150%">17、<span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">总体</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative;top:5.0pt; mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1040" type="#_x0000_t75" style='width:60.6pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image027.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="81" height="22" v:shapes="_x0000_i1040" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image028.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">的一个样本为</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1041" type="#_x0000_t75" style='width:71.4pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image029.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="95" height="22" v:shapes="_x0000_i1041" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image030.png"> <!--[endif]--></span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">，记</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative; top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1042" type="#_x0000_t75" style='width:132pt;height:27.6pt'> <v:imagedata src="xxdsb11.files/image031.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="176" height="37" v:shapes="_x0000_i1042" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image032.png"> <!--[endif]--></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="mso-tab-count:1"> </span><span style="mso-spacerun:yes"> </span></span><span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">则</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;position:relative;top:5.0pt; mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1043" type="#_x0000_t75" style='width:27.6pt;height:16.8pt'> <v:imagedata src="xxdsb11.files/image017.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="37" height="22" v:shapes="_x0000_i1043" src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image018.png"> <!--[endif]--></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">=</span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size: 12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:150%">37、<span style="font-size:12.0pt; line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt">设</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position: relative;top:28.0pt;mso-text-raise:-28.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1269" type="#_x0000_t75" style='width:154.8pt;height:63pt' o:ole=""> <v:imagedata src="xxds03.files/image340.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="206" height="84" v:shapes="_x0000_i1269" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image341.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1269" DrawAspect="Content" ObjectID="_1604818995"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">，如果方程组</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1270" type="#_x0000_t75" style='width:40.2pt;height:15pt' o:ole=""> <v:imagedata src="xxds03.files/image330.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="20" v:shapes="_x0000_i1270" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image331.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1270" DrawAspect="Content" ObjectID="_1604818996"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">无解，则</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:3.0pt;mso-text-raise: -3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1271" type="#_x0000_t75" style='width:22.2pt;height:12pt' o:ole=""> <v:imagedata src="xxds03.files/image342.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="30" height="16" v:shapes="_x0000_i1271" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image343.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1271" DrawAspect="Content" ObjectID="_1604818997"> </o:OLEObject> </xml><![endif]--></span><span style="font-size:12.0pt;line-height:150%; font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">（</span><span style="font-size:12.0pt;line-height:150%"> </span><span style="font-size:12.0pt;line-height:150%;font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">）</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;mso-font-kerning:0pt"> <o:p></o:p></span></p>