[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f_W-mCgpePDVw0UlsoDQqUKa0MHgCv6y3OOqvmmvRFo4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-12-06 13:38:22",169320197,[8,9,10,11],"1,2","3,4","1,4","2,3",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},5,"bf2f2d63adbdd90118b6afa9744db8dd","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F09b41b029cc070d5f023d9d1e3e9effd.jpg","分析化学","da9baaa23c844b2798a951dc33617f57","有效数字的运算","下列四个数据中修改为四位有效数字后为0.2134的是 ( )(1) 0.21334 (2) 0.21335 (3) 0.21336 (4) 0.213346",[21,32,41,50,53],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],169320191,[25,26,27,28],"1.25%","1.2%","1.249%","1.2492%","根据有效数字保留原则,下面计算式的正确结果是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe11393f0e69fca775c6e4901f2532f5e.png\">","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],169320193,[36,37,38,39],"12.006","12.00","12.01","12.0","由计算器算得(2.236×1.1124)\u002F(1.03590×0.2000)的结果为12.00562989,按有效数字运算规则应将结果修约为",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],169320195,[45,46,47,48],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9d3d6ab4bcb7ac80984f7ff3aa397f06.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd9988c84e90a688f03df79b9e0263f95.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd5ecffffdd50c1f9f605ccc15fcd4674.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3ea560a1c4354ef700963a092eadf23a.webp\">","已知某溶液的pH 值为10.90,其氢离子浓度的正确值为",{"answer":51,"createTime":5,"id":6,"options":52,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],169320198,[57,58,59,60],"0.25454","0.254549","0.25465","0.254651","按四舍六入五成双规则将下列数据修约为四位有效数字(0.2546)的是 ( )"]