Ellen was pleased to hear people praise her great tan skin. Melanin is a best shield to black out the UV radiation.

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问题 Ellen was pleased to hear people praise her great tan skin.
Melanin is a best shield to black out the UV radiation.

选项 A、Y
B、N
C、NG

答案B

解析 第五段第一、二句话指出"Think of your tan as a shield of melanin your body produces to block out the UV radiation.The problem is,it’s a weak shield at best"想想黑色素可以是你身体抵抗UV射线的挡箭牌,但充其量是不堪一击的挡箭牌,题干不符合原文。
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