题目内容
血液中最重要的一对缓冲物质是
2021-10-09
A.HP042-/H2P04
B.HC03-/H2C03
C.S042-/H2S04
D.NO3-/HN03
E.CI-/HCl
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25002' and id < 2133272 and id<>'2133272' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25002' and id > 2133272 and id<>'2133272' order by id asc limit 5