宫颈黏液出现典型的羊齿状结晶，相当于 正常月经周期(28天)的（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25966' and id < 2177957 and id<>'2177957' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25966' and id > 2177957 and id<>'2177957' order by id asc limit 5