[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fSu9LnhkmK6hl5pTzbwvhp8MVyejH8zuFq-REEF4PxAY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-12-06 13:38:22",169320191,[8,9,10,11],"1.25%","1.2%","1.249%","1.2492%",{"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","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\">",[21,26,35,44,53],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],169320193,[30,31,32,33],"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":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],169320195,[39,40,41,42],"\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":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],169320197,[48,49,50,51],"1,2","3,4","1,4","2,3","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",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],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 ( )"]