当静息电位的数值向膜内负值加大的方 向变化时，称作膜的（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28666' and id < 2339593 and id<>'2339593' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28666' and id > 2339593 and id<>'2339593' order by id asc limit 5