排卵时可用下列哪种激素的高峰作为标志（      ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25951' and id < 2180216 and id<>'2180216' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25951' and id > 2180216 and id<>'2180216' order by id asc limit 5