题目内容
生物碱碱性大小的表示方法是
2021-12-27
A.K值
B.pH
C.pKa
D.Ka
E.以上表示都可以
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='30242' and id < 2446469 and id<>'2446469' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30242' and id > 2446469 and id<>'2446469' order by id asc limit 5