预制梁板吊装时，吊绳与梁板的交角为（ ）时，应设置吊架或吊装扁担。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26168' and id < 2192794 and id<>'2192794' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26168' and id > 2192794 and id<>'2192794' order by id asc limit 5