在大多数细胞的膜脂质中，（ )占总量的70%以上。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30921' and id < 2488437 and id<>'2488437' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30921' and id > 2488437 and id<>'2488437' order by id asc limit 5