题目内容
与ZrOCl2反应成黄色,加柠檬酸不褪色的是
2021-10-23
A.杜鹃素
B.柚皮素
C.木犀草素
D.大豆素
E.山萘酚
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='26289' and id < 2199136 and id<>'2199136' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26289' and id > 2199136 and id<>'2199136' order by id asc limit 5