A.膠原蛋白collagen B.神經(jīng)酰胺ceramide C.酪胺酸t(yī)yrosine D.胡蘿葡素carotene
A.大白鼠 B.家兔 C.牛 D.狗
A.刺激反應(yīng) B.光毒反應(yīng) C.過敏反應(yīng) D.致畸反應(yīng)