某材料供应商不按材料采购合同的约定交付材料，材料供应商应承担（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24571' and id < 2109210 and id<>'2109210' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24571' and id > 2109210 and id<>'2109210' order by id asc limit 5