[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3NON_eh38fD1q1CHEFCc5DCoZKlg2nCnDiLgoUENsq4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-06-12 16:33:08",150728187,[8,9,10,11],"校准砝码","进行空白试验","增加平行测定次数","进行对照试验",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},267,"3534d83934e2b1854219824af3cf0f46","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F745f94856d0baa78343e11fe82d8b5e6.jpg","2023-2024-2分析化学","917e618346904980930bd9f56e4a67be","第一章综合自测","下列各措施中可减小偶然误差的是()",[21,32,41,50,56,65,74,77,86,95],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],150728181,[25,26,27,28],"仪器校正","对照试验","空白试验","无合适方法","滴定分析中,若怀疑试剂在放置中失效可通过()的方法检验","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],150728182,[36,37,38,39],"滴定时所加试剂中含有微量的被测物质","滴定管的最后一位读数偏高或偏低","所用试剂含干扰离子","室温升高","分析测定中出现的下列情况,属于偶然误差的是()",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],150728183,[45,46,47,48],"校正仪器","测加标回收率","增加测定的次数","做空白试验","检验方法是否可靠的办法是()",{"answer":51,"createTime":5,"id":52,"options":53,"question":55,"source":30,"type":31},[],150728184,[11,9,54,10],"进行仪器校准","下列方法中可用于减小滴定过程中的偶然误差的是()",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":30,"type":31},[],150728185,[60,61,62,63],"在0.2g以上","在0.2g以下","在0.1g以上","在0.4g以上","使用万分之一分析天平用差减法进行称量时,为使称量的相对误差在0.1%以内,试样质量应()",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":30,"type":31},[],150728186,[69,70,71,72],"随机产生","具有单向性","呈正态分布","难以测定","系统误差的性质是()",{"answer":75,"createTime":5,"id":6,"options":76,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],150728188,[81,82,83,84],"方法误差属于系统误差","系统误差包括操作误差","系统误差呈现正态分布","系统误差具有单向性","下述论述中错误的是()",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":31},[],150728189,[90,91,92,93],"系统误差","随机误差","标准偏差","正确","一个分析方法的准确度是反映该方法()的重要指标,它决定着分析结果的可靠性",{"answer":96,"createTime":97,"id":98,"options":99,"question":102,"source":30,"type":31},[],"2024-06-12 16:33:09",150728190,[100,101,90,91],"绝对误差","相对误差","由分析操作过程中某些不确定的因素造成的误差称为"]