表面活性剂的物理特性是（    ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27509' and id < 2269825 and id<>'2269825' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27509' and id > 2269825 and id<>'2269825' order by id asc limit 5