知識(shí)貝殼
知識(shí)貝殼
所屬欄目：英漢雙解生物學(xué)
The uptake of liquid by cells.Most digested food is absorbed in the smallintestine,the inner surface of which is linedwith finger-like projections (villi): the liquidproducts of digestion are absorbed throughthe villi into the blood and lymphatic sys-tems ......（本文共 399 字 ） [閱讀本文] >>