单选题 7 Vitamin D helps ensure that the body absorbs and retains （ ）and phosphorus, both critical for building bone. 【题目难度等级： 偏难】

单选题 2 The function assay is a quantitative test that measures the response of the system to the mineral ’ s input. Quantitative means: 【题目难度等级： 偏难】

单选题 1 Oxidize 【题目难度等级： 偏难】

单选题 4 hip 【题目难度等级： 普通】

单选题 5 For example, the starch in white bread clearly qualifies as a complex carbohydrate. Qualifies means: 【题目难度等级： 偏难】

单选题 6 constitute 【题目难度等级： 普通】

单选题 3 Carbohydrate 【题目难度等级： 偏难】

单选题 8 Good sources include dairy products and breakfast cereals (which are fortified with vitamin D) , and fatty fish such as salmon and tuna. Cereals means: 【题目难度等级： 偏难】