下列哪些行为构成投放危险物质罪？（ ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='25559' and id < 2150553 and id<>'2150553' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25559' and id > 2150553 and id<>'2150553' order by id asc limit 5