煤炭开采、自行车、钟表等行业正处于行业生命周期的（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25261' and id < 2138433 and id<>'2138433' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25261' and id > 2138433 and id<>'2138433' order by id asc limit 5