Which of the following descriptions about the amount of Vitamin D intake is true? A.The upper limit of Vitamin D intake for adults is 400 lUs. B.It is dangerous for adults to take 2,000 lUs Vitamin D daily. C.An overdose of Vitamin D does not necessarily result in diseases. D.For people under 50, it is safe to take 200 lUs Vitamin D daily.
A.The B. B.It C. C.An D. D.For E.
【参考答案】
D 事实细节题。由题干关键词VitaminDintake定位到第三段第二句…recommendations...are200IUsadayfrombirthtoage50andabitmoreafterthat...可知,对于50岁以下及略高于50岁的人群设定的建议安全标准是每天200国际单......