DNA复制发生在细胞周期的（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31091' and id < 2501183 and id<>'2501183' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31091' and id > 2501183 and id<>'2501183' order by id asc limit 5