送客服务中，若系乘飞机离境的旅游闭，地陪应提醒或协助领队提前（ ）小时确 认机票。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26640' and id < 2218983 and id<>'2218983' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26640' and id > 2218983 and id<>'2218983' order by id asc limit 5