成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">20、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_70" o:spid="_x0000_i1095" type="#_x0000_t75" style='width:275.4pt;height:35.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds02.files/image077.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="367" height="47" v:shapes="图片_x0020_70" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image077.png"> <!--[endif]--></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan; vertical-align:middle">37、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_13" o:spid="_x0000_i1037" type="#_x0000_t75" style='width:417.6pt;height:88.8pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image013.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="557" height="118" v:shapes="图片_x0020_13" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image013.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%">9、<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:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1106" type="#_x0000_t75" style='width:13.2pt;height:13.8pt' o:ole=""> <v:imagedata src="xxds03.files/image129.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="18" height="18" v:shapes="_x0000_i1106" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image130.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1106" DrawAspect="Content" ObjectID="_1604818831"> </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"">是</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_i1107" type="#_x0000_t75" style='width:33pt;height:12pt' o:ole=""> <v:imagedata src="xxds03.files/image131.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="44" height="16" v:shapes="_x0000_i1107" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image132.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1107" DrawAspect="Content" ObjectID="_1604818832"> </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"">矩阵，则齐次线性方程</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_i1108" type="#_x0000_t75" style='width:40.2pt;height:15pt' o:ole=""> <v:imagedata src="xxds03.files/image133.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="20" v:shapes="_x0000_i1108" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image134.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1108" DrawAspect="Content" ObjectID="_1604818833"> </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"">仅有零解的充分必要条件是（</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" style="line-height:150%">33、<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"">设随机变量序列</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%"><span style="position:relative; top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1141" type="#_x0000_t75" style='width:82.8pt;height:18.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image187.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="110" height="25" v:shapes="_x0000_i1141" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image188.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1141" DrawAspect="Content" ObjectID="_1604819056"> </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"">独立同分布，且</span><span lang="EN-US" style="font-size:12.0pt; line-height:150%"><span style="position:relative;top:6.0pt;mso-text-raise: -6.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1142" type="#_x0000_t75" style='width:113.4pt;height:19.2pt' o:ole=""> <v:imagedata src="xxdsb07.files/image189.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="151" height="26" v:shapes="_x0000_i1142" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image190.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1142" DrawAspect="Content" ObjectID="_1604819057"> </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 lang="EN-US" style="font-size:12.0pt; line-height:150%"> <o:p></o:p></span></p> <p class="MsoNormal"><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_i1143" type="#_x0000_t75" style='width:81pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image191.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="108" height="21" v:shapes="_x0000_i1143" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image192.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1143" DrawAspect="Content" ObjectID="_1604819058"> </o:OLEObject> </xml><![endif]--><span style="mso-spacerun:yes"> </span><span style="position:relative;top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1144" type="#_x0000_t75" style='width:27.6pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb07.files/image193.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="37" height="21" v:shapes="_x0000_i1144" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image194.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1144" DrawAspect="Content" ObjectID="_1604819059"> </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"">为标准正态分布函数，则对于任意实数</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:3.0pt;mso-text-raise:-3.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1145" type="#_x0000_t75" style='width:9.6pt;height:11.4pt' o:ole=""> <v:imagedata src="xxdsb07.files/image195.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="13" height="15" v:shapes="_x0000_i1145" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image196.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1145" DrawAspect="Content" ObjectID="_1604819060"> </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"">，</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:31.0pt;mso-text-raise:-31.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1146" type="#_x0000_t75" style='width:124.8pt;height:67.8pt' o:ole=""> <v:imagedata src="xxdsb07.files/image197.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="166" height="90" v:shapes="_x0000_i1146" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image198.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1146" DrawAspect="Content" ObjectID="_1604819061"> </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"">（</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%">11、<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">三个方程四个未知量的线性方程组</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_i1264" 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_i1264" 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_i1264" DrawAspect="Content" ObjectID="_1604818990"> </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"">满足如下条件（</span><span style="font-size:12.0pt;line-height: 150%"> </span><span style="font-size:12.0pt;line-height:150%;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">）时一定有解</span><span lang="EN-US" style="font-size:12.0pt;line-height:150%">.</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">26、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_195" o:spid="_x0000_i1217" type="#_x0000_t75" style='width:360.6pt;height:56.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds01.files/image194.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="481" height="75" v:shapes="图片_x0020_195" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image194.png"> <!--[endif]--></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">25、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_126" o:spid="_x0000_i1151" type="#_x0000_t75" style='width:350.4pt;height:62.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds02.files/image133.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="467" height="83" v:shapes="图片_x0020_126" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image133.png"> <!--[endif]--></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">18、<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"><span style="position:relative; top:5.0pt;mso-text-raise:-5.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1104" type="#_x0000_t75" style='width:26.4pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image069.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="35" height="21" v:shapes="_x0000_i1104" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image133.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1104" DrawAspect="Content" ObjectID="_1604819177"> </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"">是相互独立且均服从正态分布</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:12.0pt;mso-text-raise:-12.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1105" type="#_x0000_t75" style='width:40.2pt;height:30.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image134.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="54" height="41" v:shapes="_x0000_i1105" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image135.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1105" DrawAspect="Content" ObjectID="_1604819178"> </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"">的随机变量，则</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_i1106" type="#_x0000_t75" style='width:66pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image136.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="88" height="21" v:shapes="_x0000_i1106" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image137.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1106" DrawAspect="Content" ObjectID="_1604819179"> </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"">（</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">21、<span lang="EN-US"> <!--[if gte vml 1]><v:shape id="图片_x0020_89" o:spid="_x0000_i1114" type="#_x0000_t75" style='width:267pt;height:21.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="xxds02.files/image096.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="356" height="29" v:shapes="图片_x0020_89" src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image096.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">6、<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"><span style="position:relative; top:2.0pt;mso-text-raise:-2.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1242" type="#_x0000_t75" style='width:14.4pt;height:12.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image278.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="19" height="17" v:shapes="_x0000_i1242" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image266.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1242" DrawAspect="Content" ObjectID="_1604819317"> </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"; position:relative;top:2.0pt;mso-text-raise:-2.0pt">的分布函数为</span><span lang="EN-US" style="font-size:12.0pt"><span style="position:relative; top:25.0pt;mso-text-raise:-25.0pt"> <!--[if gte vml 1]><v:shape id="_x0000_i1243" type="#_x0000_t75" style='width:99pt;height:56.4pt' o:ole=""> <v:imagedata src="xxdsb09.files/image334.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="132" height="75" v:shapes="_x0000_i1243" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image335.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1243" DrawAspect="Content" ObjectID="_1604819318"> </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 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_i1244" type="#_x0000_t75" style='width:36pt;height:15.6pt' o:ole=""> <v:imagedata src="xxdsb09.files/image336.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="48" height="21" v:shapes="_x0000_i1244" src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image337.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="2" > <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1244" DrawAspect="Content" ObjectID="_1604819319"> </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"">（</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>