用力法解超静定结构时，只能采用多余约束力作为基本未知量。     （  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='7463' and id < 586015 and id<>'586015' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='7463' and id > 586015 and id<>'586015' order by id asc limit 5