合同当事人违反合同义务，承担违约责任的种类主要有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24571' and id < 2109268 and id<>'2109268' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24571' and id > 2109268 and id<>'2109268' order by id asc limit 5