D. before John’s death, the writer never asked others for help

　　31. The writer wrote the passage to ___________.

　　A. share her sad story with us

　　B. express her guilty conscience to the people who helped her

　　C. show her thanks to the people who love and support her

　　D. tell us the changes she has made because of her husband’s death

　　参考答案28-31 BBCC

　　D

　　CHICAGO(Reuters)-Smoking not only can wrinkle(皱纹)the face and turn it yellow—it can do the same to the whole body, researchers reported on Monday.

　　The study, published in the Archives of Dermatology, shows that smoking affects the skin all over the body-even skin protected from the sun.

　　“We examined non-facial skin that was protected from the sun, and found that the total number of packs, of cigarette smoked per day and the total years a person has smoked were linked with the amount of skin damage a person experienced, ”Dr. Yolanda, who led the study, said in a statement.

　　“In participants older than 65 years, smokers had significantly more fine wrinkling than nonsmokers. Similar findings were seen in participants aged 45 to 65 years. ” Yolanda’s team added in their report.

　　The researchers tested 82 people, smokers and nonsmokers, taking pictures of the inner right arms. They ranged, in age from 22 to 91 and half were smokers. In dependent judges decided how wrinkled each person’s skin was.

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