题目内容
下列哪些是系统误差
2021-10-19
A.砝码受蚀
B.天平两臂不等长
C.样品在称量过程中吸湿
D.操作人员对滴定终点颜色变化不敏锐
E.温度变化对测量结果有较大影响
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='26077' and id < 2186018 and id<>'2186018' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26077' and id > 2186018 and id<>'2186018' order by id asc limit 5