促进莴苣种子萌发的光是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25861' and id < 2171272 and id<>'2171272' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25861' and id > 2171272 and id<>'2171272' order by id asc limit 5