枕先露的胎头到达骨盆底俯屈之后，下列哪 条最小径线继续下降（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26838' and id < 2231730 and id<>'2231730' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26838' and id > 2231730 and id<>'2231730' order by id asc limit 5