题目内容
闭门器的关门时间建议设置为（）为宜。
2021-09-20
A.3〜5s
B.4〜6s
C.6〜8s
D.8〜10s
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SQL Error: select id,body,options from ***_enewstiku where sourceid='23773' and id < 2067492 and id<>'2067492' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23773' and id > 2067492 and id<>'2067492' order by id asc limit 5