题目内容
光化学烟雾的主要成分不包括
2021-10-12
A.臭氧
B.NOx
C.过氧酰基硝酸酯
D.醛类
E.酮类
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25515' and id < 2148092 and id<>'2148092' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25515' and id > 2148092 and id<>'2148092' order by id asc limit 5