Indeed, as Dr. Wang also pointed out, when people choose increased SPFs, they may actually feel so protected by the product that they finally ignore proper sun protection. “When people use really high SPF products, they tend not to reuse, they tend to stay out in the sun much longer, and they don’t use other protective measures such as clothing and hats,” he says. Regardless of any increase in protection that a high SPF may or may not offer, one thing is certain: It doesn’t give your body a free pass from sunburns, aging, or cancers, and it doesn’t protect you from those things for any greater length of time than the lower SPF options. Both Dr. Wang and Dr. Gohara emphasized that, no matter what the SPF is, it’s important to reapply your sunscreen every two hours.

　　32.What rays can cause skin cancer according to the text?

　　A.UV

　　B.UVA

　　C.UVB

　　D.UVA&UVB

　　33.What can we know about SPF from Paragraph 1?

　　A. It tells us the UVB protection level.

　　B. It’s better to use higher numbered SPF.

　　C. SPA100 means preventing 100% rays .

　　D. There’s a big difference between SPF 50 and above.

　　34.Which of the following can replace the underlined word “downside” in Paragraph 2?

　　A. protection

　　B. disadvantage

　　C. result

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