题目内容
正常人血中HCO3-与H2C03之比为
2022-03-07
A.15:1
B.10:1
C.20:1
D.25:1
E.30:1
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='32487' and id < 2580499 and id<>'2580499' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32487' and id > 2580499 and id<>'2580499' order by id asc limit 5