题目内容
存在于B. N
2022-01-08
A.中而不存在于DNA中的碱 基是A. 腺嘌呤
B.鸟嘌呤
C.胞嘧啶
D.尿嘧啶
E.胸腺嘧啶
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='30794' and id < 2479992 and id<>'2479992' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30794' and id > 2479992 and id<>'2479992' order by id asc limit 5