乳的白色是源于乳中的酪蛋白酸钙-磷酸钙胶粒和()等微粒对光的反射和折射。黄色来源于饲料中的()。
参考答案:乳脂肪球;胡萝卜素和叶黄素
The speaker believes that a practical solution to the problem of starvation is to remove obstacles to adequate supply of food rather than to increase production of it.
保险的派生职能不包括( )。
A.防灾防损B.融通资金C.组织经济补偿D.分配