問題詳情

12. The reason older persons are more sensitive to sun exposure and more likely to get sunburned is that withage
(A) glandular activity declines.
(B) skin thickness decreases.
(C) melanocyte activity declines.
(D) vitamin D3 production declines. 

參考答案

答案:C
難度:適中0.515152
統計:A(2),B(3),C(17),D(5),E(0)

內容推薦

內容推薦