21___________Anything higher than SPF 50+ can tempt you to stay in the sun too long. Even

if you don’t burn, your skin may be damaged. Stick to SPFs between 15 and 50+. Pick a product based on your own skin color, time outside, shade and cloud cover. News about vitamin A. Eating vitamin A –rich vegetables is good for you, but spreading vitamin A on your skin may not be. Government data shows that cancers develop sooner on skin coated with creams with vitamin A .

22___________ Pick a good sunscreen. EWG ’s sunscreen database rates the safety and effect of about 1,400 SPF-rated products, including about 750 sunscreens for beaches and sports use. We give high ratings to brands that provide broad-range, long- lasting protection with ingredients that pose fewer health concerns when absorbed by the body.

23___________Cream, because sprays cloud the air with tiny particles that may not be safe to breathe. Reapply cream often. Sunscreen chemicals sometimes degrade in the sun, wash off or rub off on towels and clothing.

24___________ The FAD treats powdered sunscreens as unapproved new drugs and may take enforcement action against companies that sell them-except for small businesses, which can sell powders until December 2013.

25___________ Wear sunscreen. In 2009, nearly twice as many American men died form. skin cancers as women. Surveys show that 34 percent of men wear sunscreens, compared to 78 percent of women. Got your vitamin D？ Many people don ’t get enough vitamin D, a hormone manufactured by the skin in the presence of sunlight. Your doctor can test your level and recommend supplements if you are low in this vital nutrient.

A.No powder!

B.Avoid midday sun.

C.Message for men:

D.Cream or spray？

E.Don’t fall for high SPF labels.

F.Take special precautions with infants and children.

G.Avoid any sun product whose label says vitamin A.

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请帮忙给出每个问题的正确答案和分析，谢谢！