协助扩散又叫易化扩散，下列有关物质通过细胞膜的说法正确的是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21276' and id < 1848838 and id<>'1848838' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21276' and id > 1848838 and id<>'1848838' order by id asc limit 5