评论
打印
Now listen to the following recording and answer questions 19 to 21
19
A.It is required by the body for the absorption of calcium.
B.Exposure to the sun may lower your level of it.
C.Nuts, lentils and fatty fish don't contain it.
D.High level of it could be related to dementia.
20
A.47 million people suffer from dementia in the world.
B.Most of the dementia patients live in developed countries.
C.Alzheimer's disease is an unusual form of dementia.
D.Excess vitamin D can increase the risk of dementia.
21
A.Those who had dementia had higher vitamin D status.
B.Those low in vitamin D showed less short-term memory loss.
C.Those low in vitamin D are less capable of making decisions.
D.Those high in vitamin D are easy to have dementia.
