【判断题】
当<img src=http://oss.ouchn.cn/ddzx/N601/jiaoyu/jjsx/50459/unit/chapter_two/images/rw/image073.png style=box-sizing: inherit; border-style: none; vertical-align: middle; color: rgb(58, 58, 58); font-family: Microsoft YaHei font-size: medium; white-space: normal; background-color: rgb(255, 255, 255);/>时,函数<img src=http://oss.ouchn.cn/ddzx/N601/jiaoyu/jjsx/50459/unit/chapter_two/images/rw/image111.png style=box-sizing: inherit; border-style: none; vertical-align: middle; color: rgb(58, 58, 58); font-family: Microsoft YaHei font-size: medium; white-space: normal; background-color: rgb(255, 255, 255);/>是无穷小量.
【判断题】
若f ( x )在区间<img src=http://oss.ouchn.cn/ddzx/N601/jiaoyu/jjsx/50459/unit/chapter_six/images/01/image020.png align=middle style=box-sizing: inherit; border-style: none; vertical-align: middle; color: rgb(58, 58, 58); font-family: Microsoft YaHei font-size: medium; white-space: normal; background-color: rgb(255, 255, 255);/>上可积,必有<img src=http://oss.ouchn.cn/ddzx/N601/jiaoyu/jjsx/50459/unit/chapter_six/images/01/image002.png align=middle style=box-sizing: inherit; border-style: none; vertical-align: middle; color: rgb(58, 58, 58); font-family: Microsoft YaHei font-size: medium; white-space: normal; background-color: rgb(255, 255, 255);/>。
【判断题】
<img src=http://oss.ouchn.cn/ddzx/N601/jiaoyu/jjsx/50459/unit/chapter_seven/images/03/image011.png align=middle style=box-sizing: inherit; border-style: none; vertical-align: middle; color: rgb(58, 58, 58); font-family: Microsoft YaHei font-size: medium; white-space: normal; background-color: rgb(255, 255, 255);/>是线性微分方程。
【判断题】
由微分定义有:<img src=http://oss.ouchn.cn/ddzx/N601/jiaoyu/jjsx/50459/unit/chapter_five/images/03/image015.png align=absmiddle id=yui_3_17_2_1_1584517240269_19 style=box-sizing: inherit; border-style: none; vertical-align: middle;/>
【简答题】
<p style=";text-align:left"><span style=";font-family:仿宋;color:#000000;font-size:21px"><span style="font-family:仿宋"></span></span></p><p style=";text-align:left"><strong><span style=";font-family:仿宋;font-weight:bold;font-size:21px"><span style="font-family:仿宋">社会互动</span></span></strong><span style=";font-family:仿宋;color:#000000;font-size:21px"><span style="font-family:仿宋"><br/></span></span><br/></p><p><br/></p>
【单选题】
设<img class=jc-formula data-tex=\hat { \theta } src=https://huaweicloudobs.ahjxjy.cn/9CAB6F870853DAF6FBCDD58C16DD47B2.png style=vertical-align: middle;/>是未知参数<img class=jc-formula data-tex=\theta src=https://huaweicloudobs.ahjxjy.cn/9B0901CB3A90E03AB9AFCDB8A3E9E9ED.png style=vertical-align: middle;/>的一个估计量,若<img class=jc-formula data-tex=E\hat { \theta } \neq \theta src=https://huaweicloudobs.ahjxjy.cn/6F6633DB35E25A5A269C21DBA0A6817E.png style=vertical-align: middle;/>,则<img class=jc-formula data-tex=\hat { \theta } src=https://huaweicloudobs.ahjxjy.cn/9CAB6F870853DAF6FBCDD58C16DD47B2.png style=font-family: 宋体; font-size: 14px; white-space: normal; vertical-align: middle;/>是<img class=jc-formula data-tex=\theta src=https://huaweicloudobs.ahjxjy.cn/9B0901CB3A90E03AB9AFCDB8A3E9E9ED.png style=font-family: 宋体; font-size: 14px; white-space: normal; vertical-align: middle;/>的
【判断题】
<p style="line-height:24px"><span style="font-size:16px;font-family:宋体">广东省《关于建筑施工安全生产标准化评定工作实施细则》(粤建质〔2015〕130号)要求,</span><span style="font-size: 16px;font-family: 宋体;background-color: white">项目安全生产标准化评定由监理单位进行评定后报政府监督部门备案</span><span style="font-size:16px;font-family:宋体">。( )</span>
【多选题】
<p><span style=";font-family:仿宋;font-size:21px"><span style="font-family:仿宋">以下属于</span></span><span style=";font-family:仿宋;font-size:21px"><span style="font-family:仿宋">典型的初级社会群体</span></span><span style=";font-family:仿宋;font-size:21px"><span style="font-family:仿宋">的是</span></span></p>
【单选题】
设总体<img class=jc-formula data-tex=X src=https://huaweicloudobs.ahjxjy.cn/18E2773B1E2835B209E7E51B85285E80.png style=vertical-align: middle;/>的数学期望为<img class=jc-formula data-tex=\mu , src=https://huaweicloudobs.ahjxjy.cn/07393889DE1E04D799FC2171DD4841CF.png style=vertical-align: middle;/><img class=jc-formula data-tex={ X }_{ 1 },{ X }_{ 2 },\cdots { X }_{ n } src=https://huaweicloudobs.ahjxjy.cn/7872682357A677F5C3693835FBDE154B.png style=vertical-align: middle;/>为来自<img class=jc-formula data-tex=X src=https://huaweicloudobs.ahjxjy.cn/18E2773B1E2835B209E7E51B85285E80.png style=font-family: 宋体; font-size: 14px; line-height: 24px; white-space: normal; vertical-align: middle;/>的样本,则下列结论中正确的是
①
<img class=jc-formula data-tex={ X }_{ 1 } src=https://huaweicloudobs.ahjxjy.cn/DA66F1A424E4031AEED284B5B6FE9A43.png style=vertical-align: middle;/>是<img class=jc-formula data-tex=\mu \quad src=https://huaweicloudobs.ahjxjy.cn/72143C62DAAAA39AB69A5506838561CA.png style=vertical-align: middle;/>的无偏估计量
②
<img class=jc-formula data-tex={ X }_{ 1 } src=https://huaweicloudobs.ahjxjy.cn/DA66F1A424E4031AEED284B5B6FE9A43.png style=white-space: normal; vertical-align: middle;/>是<img class=jc-formula data-tex=\mu \quad src=https://huaweicloudobs.ahjxjy.cn/72143C62DAAAA39AB69A5506838561CA.png style=font-family: 宋体; font-size: 14px; white-space: normal; vertical-align: middle;/>的极大似然估计量
③
<img class=jc-formula data-tex={ X }_{ 1 } src=https://huaweicloudobs.ahjxjy.cn/DA66F1A424E4031AEED284B5B6FE9A43.png style=white-space: normal; vertical-align: middle;/>是<img class=jc-formula data-tex=\mu \quad src=https://huaweicloudobs.ahjxjy.cn/72143C62DAAAA39AB69A5506838561CA.png style=font-family: 宋体; font-size: 14px; white-space: normal; vertical-align: middle;/>的相合(一致)估计量
④
<img class=jc-formula data-tex={ X }_{ 1 } src=https://huaweicloudobs.ahjxjy.cn/DA66F1A424E4031AEED284B5B6FE9A43.png style=white-space: normal; vertical-align: middle;/>不是<img class=jc-formula data-tex=\mu \quad src=https://huaweicloudobs.ahjxjy.cn/72143C62DAAAA39AB69A5506838561CA.png style=font-family: 宋体; font-size: 14px; white-space: normal; vertical-align: middle;/>的估计量
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/B8E519D255F410DEC0CBB04218E47B10.png title=QQ截图20170105215205.png alt=QQ截图20170105215205.png style=white-space: normal;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/34818CD139B9C2A89F700C4CB4ED8444.png title=QQ截图20170105215213.png alt=QQ截图20170105215213.png style=white-space: normal;/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/CA00968537D2720B487C7DA5112B6CE6.png title=QQ截图20170105215221.png alt=QQ截图20170105215221.png style=white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/E5EDFF71C1A83E73D1ECFC332B560AC3.png title=QQ截图20170105215228.png alt=QQ截图20170105215228.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/C4AD6AA9862BB41C2128B5C65D32DA70.png title=QQ截图20170105215235.png alt=QQ截图20170105215235.png style=white-space: normal;/>