与滚转包衣相比,悬浮包衣具有如下哪 些优点（    ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27508' and id < 2269867 and id<>'2269867' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27508' and id > 2269867 and id<>'2269867' order by id asc limit 5