[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fwTe5JG6ubqZurB8HXIOmalTJ6FbE9aZHNts9W5gICgk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-10-27 13:19:06",101951663,[8,9,10,11],"进行仪器校正","做对照试验","增加平行测定次数","做空白试验",{"courseId":13,"courseImg":14,"courseName":15},"8eea390de847b198b4ce17612bd5d524","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6889131734fc03cc99c3f456f3629df7.png","分析化学","以下各项措施中,可以减小随机误差的是",[18,29,38,47,56,62,71,74,83,91],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],101951649,[22,23,24,25],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F054c3c90607ba0d6188c5677a77a5193.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3139c541b2519fb57d25adf59db28c8c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fef456fdc603de8caf665a563dc631b02.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F72cad253b2417409799be74818d979ac.png\">","某溶液的pH为9.180,其氢离子活度为","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],101951651,[33,34,35,36],"0.312g","0.0963g","0.2587g","0.3010g","用分析天平称量试样时,在下列结果中不正确的表达是-",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],101951653,[42,43,44,45],"样本平均值","样本标准差","样本容量n","自由度f","想通过一组分析数据来反映该样本所代表的总体,下面必不可少的量是",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],101951655,[51,52,53,54],"高精密度","与已知的质量分数的试样多次分析结果的平均值一致","标准差大","仔细校正所用砝码和容量仪器等","下列表述中,最能说明随机误差小的是",{"answer":57,"createTime":5,"id":58,"options":59,"question":61,"source":27,"type":28},[],101951658,[60,11,10,9],"对仪器进行校准","可以减小随机误差的方法是",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":27,"type":28},[],101951661,[66,67,68,69],"0.780","0.078","7.0080","7.800","下列数据中有效数字是四位的是",{"answer":72,"createTime":5,"id":6,"options":73,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":27,"type":28},[],101951666,[78,79,80,81],"大小不同的误差随机出现","大误差出现的概率大","正负误差出现的概率不同","大误差出现的概率小,小误差出现的概率大","随机误差符合正态分布,其特点是",{"answer":84,"createTime":5,"id":85,"options":86,"question":90,"source":27,"type":28},[],101951668,[10,87,88,89],"称样量在0.2g以上","用标准试样进行对照试验","认真细心地做实验","能消除测定方法中的系统误差的措施是",{"answer":92,"createTime":5,"id":93,"options":94,"question":99,"source":27,"type":28},[],101951671,[95,96,97,98],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F828c0518dd08156a6245cb4660880495.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff9bcc15b1577ead1399fc543b3c4b2a3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc5e8ad96deee09896b549a45831cedac.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd31c09599ae12e746343219f807d2fe5.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3db770461a409386030495a941f591ba.png\">"]