题目内容
人类中枢免疫器官是( )。
2022-01-10
A.淋巴结和脾脏
B.胸腺和骨髓
C.淋巴结和胸腺
D.骨髓和黏膜
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='30914' and id < 2487768 and id<>'2487768' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30914' and id > 2487768 and id<>'2487768' order by id asc limit 5