胎儿先露部的指示点与母体的关系称为（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25964' and id < 2177678 and id<>'2177678' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25964' and id > 2177678 and id<>'2177678' order by id asc limit 5