[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f18Q-ENrBxHPFz1ev5vyFsFCCOGG5qwvyeMvI3b_GXss":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":14,"question":20,"related":21,"source":29,"type":41},[],"2023-05-08 02:14:23",88710185,[8,9,10,11,12,13],"整理","整顿","清扫","清洁","素养","安全",{"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},"1000063193","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4b8bde90d0ee582523a9d4efb0194d4d.jpg","分析化学","35190323","第二章单元测试","6S管理的内容包括( )",[22,31,42,45,50,61,71,81,90,100],{"answer":23,"createTime":5,"id":24,"options":25,"question":28,"source":29,"type":30},[],88710181,[26,27],"对","错","系统误差的出现有规律,而随机误差的出现没有规律.( )","v2",3,{"answer":32,"createTime":5,"id":33,"options":34,"question":40,"source":29,"type":41},[],88710182,[35,36,37,38,39],"做空白试验","增加平行测定的次数","校正仪器","使用纯度为98%的基准物质","选择合适的分析方法","提高分析结果准确度的方法是( )",1,{"answer":43,"createTime":5,"id":6,"options":44,"question":20,"source":29,"type":41},[],[8,9,10,11,12,13],{"answer":46,"createTime":5,"id":47,"options":48,"question":49,"source":29,"type":30},[],88710187,[26,27],"使用有毒、异臭、强烈刺激性气味的物质时,必须在通风处内操作.( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":59,"source":29,"type":60},[],88710276,[54,55,56,57,58],"终点误差","化学计量点","滴定终点","滴定误差","滴定终点误差","滴定过程中,指示剂颜色发生改变的转折点是( )",0,{"answer":62,"createTime":5,"id":63,"options":64,"question":70,"source":29,"type":60},[],88710278,[65,66,67,68,69],"直接滴定法","剩余滴定法","置换滴定法","间接滴定法","酸碱滴定法","测定固体碳酸钙的含量,先加入定量且过量的HCl标准溶液,待反应完全后,再用NaOH标准溶液滴定剩余的HCl.这种滴定方式为( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":80,"source":29,"type":60},[],88710281,[75,76,77,78,79],"0. 2016mol\u002FL","0. 20mol\u002FL","0. 1008mol\u002FL","0.2mol\u002FL","0. 10mol\u002FL","将10.6854gNaCO基准物质,配制成500ml标准溶液,该标准溶液的准确浓度为( )",{"answer":82,"createTime":5,"id":83,"options":84,"question":89,"source":29,"type":60},[],88710283,[85,86,87,88],"0.132","1.0 &times;10","6.023 &times;10","0.0150","下列数据中,有效数字是4位的是( )",{"answer":91,"createTime":5,"id":92,"options":93,"question":99,"source":29,"type":60},[],88710285,[94,95,96,97,98],"随机误差小","系统误差小","平均偏差小","相对偏差小","标准偏差小","从精密度好就可断定分析结果可靠的前提是( )",{"answer":101,"createTime":5,"id":102,"options":103,"question":109,"source":29,"type":60},[],88710287,[104,105,106,107,108],"以盐酸标准溶液测量某碱样,所用滴定管未洗净,滴定时内壁挂液珠","测量HCO&middot;H2O的摩尔质量时,草酸失去部分结晶水","用于标定标准溶液的基准物质在称量时吸潮了","用于标定标准溶液的基准物质倒入烧杯时,撒出少许","滴定时速度过快,并在到达终点后立即读取滴定管读数","下述情况中,使分析结果产生负误差的是( )"]