Questions are based on the following passage.
1.
2.
3.
1.
A.Weak bones. | B.Loose teeth. | C.Skin problems. | D.Heart diseases. |
A.Having food rich in vitamin. | B.Walking midday in the sun with no suncream. |
C.Taking vitamin D pills every day. | D.Wearing darker coloured clothes and sunhats. |
A.To analyze the common causes of lack of vitamin D. |
B.To encourage people to be exposed to the sun for vitamin D. |
C.To emphasize the importance of vitamin D in one’s health. |
D.To introduce some different ways to gain vitamin D. |
更新时间:2021-04-02 19:34:58
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