心室肌细胞不具有下列哪一生理特性  ( )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29014' and id < 2361000 and id<>'2361000' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29014' and id > 2361000 and id<>'2361000' order by id asc limit 5