(2017 •辽宁）关于光污染的危害，下列理解错误的是：

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29348' and id < 2389743 and id<>'2389743' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29348' and id > 2389743 and id<>'2389743' order by id asc limit 5