题目内容
亚硝酸钠法滴定盐酸普鲁卡因，可选用的指示剂为
2021-10-18
A.酚酞
B.甲基橙
C.碘化钾-淀粉糊剂
D.铬酸钾
E.结晶紫
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='26007' and id < 2182478 and id<>'2182478' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26007' and id > 2182478 and id<>'2182478' order by id asc limit 5