属于受体信号转导第一信使的有（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24966' and id < 2127242 and id<>'2127242' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24966' and id > 2127242 and id<>'2127242' order by id asc limit 5