可引起不孕，妊娠失败率髙的是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25957' and id < 2177066 and id<>'2177066' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25957' and id > 2177066 and id<>'2177066' order by id asc limit 5