下列情形中，甲和乙只需承担双方责任，无须承担共同责任的是：

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31922' and id < 2552486 and id<>'2552486' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31922' and id > 2552486 and id<>'2552486' order by id asc limit 5