問題詳情

47 According to the passage, what will happen during exposure to sunlight?
(A) Vitamin D will be produced.
(B) One’s bones will become soft.
(C) One’s skin will turn dark.
(D) The calcium level in the blood will decrease.

參考答案

答案:A
難度:適中0.666667
統計:A(2),B(1),C(0),D(0),E(0)

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