题目内容
要使焚光强度与荧光物质的浓度成正比, 应使( )
2021-10-08
A.激发光必须很强
B.样品浓度适中
C.光源、检测器、样本应在同一直线上
D.样本切片应有一定厚度_
E.待测物吸光系数要很大
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25032' and id < 2131152 and id<>'2131152' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25032' and id > 2131152 and id<>'2131152' order by id asc limit 5