【单选题】【消耗次数:1】
评价试验整理表试验金标准合计阳性a(真阳性)b(假阳性)a+b阴性c(假阴性)d(真阴性)c+d合计a+cb+da+b+c+d特异度公式为
<img title=图片1.png alt=图片1.png src=https://huaweicloudobs.ahjxjy.cn/ACBF09FED8A1E249D5844D7A8135CD8C.png/>
<img title=图片2.png alt=图片2.png src=https://huaweicloudobs.ahjxjy.cn/C972C07EAF70D534281259B041DEC367.png/>
<img title=图片3.png alt=图片3.png src=https://huaweicloudobs.ahjxjy.cn/0E5B96CB5E76E65AD92948E34CEB16A8.png/>
<img title=图片4.png alt=图片4.png src=https://huaweicloudobs.ahjxjy.cn/8FCC8A83E1DBE9E810C9E64DF4FB9BE6.png/>
参考答案:
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相关题目
【单选题】 设D是圆环<img src=https://huaweicloudobs.ahjxjy.cn/C1E9D12458DFD4A14CD3882562ECD317.png title=QQ图片20160224231208.png alt=QQ图片20160224231208.png/>,且<img src=https://huaweicloudobs.ahjxjy.cn/19CA4355701DCCA8E9BFC90709B1C2E6.png title=QQ图片20160224231228.png alt=QQ图片20160224231228.png/>则<img src=https://huaweicloudobs.ahjxjy.cn/D387AD7A8CB622BCD1F542C7C350B136.png title=QQ图片20160224231244.png alt=QQ图片20160224231244.png/>( )
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②  <img src=https://huaweicloudobs.ahjxjy.cn/AFF8BA7BECE58AC3901A521D7A606F30.png title=QQ图片20160224231314.png alt=QQ图片20160224231314.png/>
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/A7680902CB99663BA6E23408C5C4ABFB.png title=QQ图片20160108111419.png alt=QQ图片20160108111419.png/><img src=https://huaweicloudobs.ahjxjy.cn/F7C836FE5C2376120035EBE3D8C699B9.png title=QQ图片20160108111439.png alt=QQ图片20160108111439.png/>
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【多选题】 <img src=https://huaweicloudobs.ahjxjy.cn/4DE29EFA21CB7D8D919C14C049187750.png title=1.png alt=1.png/><img src=https://huaweicloudobs.ahjxjy.cn/E85495858960DABC7D0670895F1502DC.png title=2.png alt=2.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/5329CCB367DC78F31026DD8A280B9DB7.png title=4.png alt=4.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/F0279F9E99540B5C6AD90E91695A90B0.png title=3.png alt=3.png/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/201DB0FD15C18B3A27CC64EEA281F911.png title=5.png alt=5.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/7EAB1F1D0550A6C5C24EEB0FFE8B0D00.png title=6.png alt=6.png/>
【单选题】 设<img src=https://huaweicloudobs.ahjxjy.cn/EA6FB79FF8DF7A9F3A2D0CEB093C717F.png title=QQ图片20160224214006.png alt=QQ图片20160224214006.png/>在<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>的偏导数存在,则<img src=https://huaweicloudobs.ahjxjy.cn/61AF63E59A60D6B49960C25A0B85414F.png title=QQ图片20160224214038.png alt=QQ图片20160224214038.png/>
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/105E111DA681E95D88E4E4152F4C46E2.png title=QQ图片20160108165131.png alt=QQ图片20160108165131.png/><img src=https://huaweicloudobs.ahjxjy.cn/552A8C09885689EB452DA3865ADAD75D.png title=QQ图片20160108165150.png alt=QQ图片20160108165150.png/>
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/0254C4E31D18D431D8ACA48E5B0517E0.png title=1-C.png alt=1-C.png/>
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/BBB8E3C4510E904B05C742126FDC96DA.png title=QQ图片20160108171807.png alt=QQ图片20160108171807.png/>( )。
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/2971277726E1AB4C1E94594D5B2FE1D0.png title=1.png alt=1.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/E4AFF8B95AFC07CFEC2088188963B66F.png title=1-1.png alt=1-1.png/>
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③  <img src=https://huaweicloudobs.ahjxjy.cn/A23DE06F7045AA7BC582D44A2732334B.png title=1-3.png alt=1-3.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/D67541B9BE2CDB0204F01B82B28FBEE7.png title=1-4.png alt=1-4.png/>
随机题目
【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/9717BDCB9C67384643EC4D80C9CDC34C.png title=6.png alt=6.png/>
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④  <img src=https://huaweicloudobs.ahjxjy.cn/060E7681E20CD5AB07088F54062E9F36.png title=6-4.png alt=6-4.png/>
【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/E60A20C9FB1B69791C71EA13FF595AC5.png title=2.png alt=2.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/15819DA229AFE327C16929DDCB6CB3E2.png title=2-1.png alt=2-1.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/261D84768463BD053573833546BD1B73.png title=2-2.png alt=2-2.png/>
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/FD41BC9F565CD3B840863B6CBCC71714.png title=14.png alt=14.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/9198A4D7094E8B228F0131CC1EC610E8.png title=14-1.png alt=14-1.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/46732A88B451635987FE8E9B34A88004.png title=14-2.png alt=14-2.png/>
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/4DE09547F2AA7A899F1B8AF0B2EED2F5.png title=18.png alt=18.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/BE53B6DB2AD36B138835AD9908DCFD68.png title=18-1.png alt=18-1.png/>
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/E5FD087547AD7B84A7DC5E851414FEAF.png title=20.png alt=20.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/72ABA4BC9ED26399E8144B558A2E3420.png title=20-1.png alt=20-1.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/0567081D8398BF24B09230FD5C891322.png title=20-2.png alt=20-2.png/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/21BB40482AFB97494B486E7D5A589AB2.png title=20-3.png alt=20-3.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/34BBE326C4C1564602EE13F7163F1216.png title=20-4.png alt=20-4.png/>
【判断题】 <img src=https://huaweicloudobs.ahjxjy.cn/97FA71E45F7C09710B79DA7346F9A3E9.png title=23.png alt=23.png/>
①  正确
②  错误
【判断题】 <img src=https://huaweicloudobs.ahjxjy.cn/DCFFAD3F4BB987899CD474202ABCF263.png title=23.png alt=23.png/>
①  正确
②  错误
【判断题】 <img src=https://huaweicloudobs.ahjxjy.cn/8EB45BEED247329DEC7E02F6A89986FC.png title=15.png alt=15.png/>
①  正确
②  错误
【判断题】 <img src=https://huaweicloudobs.ahjxjy.cn/BEA5BC207D01D8587848621B54F4369D.png title=12.png alt=12.png/>
①  正确
②  错误
【判断题】 <img src=https://huaweicloudobs.ahjxjy.cn/8B2F64892B492FA80077D49D2CFDC41A.png title=16.png alt=16.png/>
①  正确
②  错误