[名词解释] 清净

与膳食纤维生理作用无关的是（）. ["预防老年性便秘","改善肠道菌群","调节血糖、血脂代谢","促进维生素的消化吸收","预防癌症"] 渗出汁除渣器 甜菜丝搅拌器 二氧化硫吸收率 郴州GPS车载电话业务GPS终端产品有哪些类型？（） ["防盗型；","调度型；","豪华型；","特种型。"] 清净