2. 外语
  3. Among those tanning customers, it is estimated that most of them are ______. Why do those promoters think the tanning machines

Among those tanning customers, it is estimated that most of them are ______. Why do those promoters think the tanning machines

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问题 Among those tanning customers, it is estimated that most of them are ______.
Why do those promoters think the tanning machines are healthy?
选项 A、Because they are scientifically designed.
B、Because they have high quality control.
C、Because they can emit those harmful rays.
D、Because they are comfortable.
答案C
解析 由题干中的promoters和tanning machines ,可以定位到第二段第二句Promoters say tanning machines are healthy because they emit mostly ultraviolet A (UVA)rays, which cause most sunburns.[精析] 从原文知道，那些日晒机器的倡导者认为日晒床是健康的，因为这些设备可以散发大量会灼伤皮肤紫外线。故C)“因为它们能散发有害的光线”正确。
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大学英语四级

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