B．barriers to greater power

　　C．challenges to their colleagues

　　D. chances for self­development

　　答案　D　[细节理解题。根据第三段的They are just better at seeing those problems as challenges and opportunities to develop their own talents.可知。]

　　B

　　Christopher Thomas, 27, was a writer by night and a teacher by day when he noticed he was always tired and was losing weight fast. Diagnosed with diabetes(糖尿病), Thomas would need to inject himself with insulin(胰岛素) three times a day for the rest of his life or risk nerve damage, blindness, and even death. And if that weren't bad enough, he had no health insurance.

　　After a month of feeling upset, Thomas decided he'd better find a way to fight back. He left Canton, Michigan for New York, got a job waiting tables, nicknamed himself the Diabetic Rockstar, and created diabeticrockstar.com, a free online community for diabetics and their loved ones—a place where over 1,100 people share personal stories, information, and resources.

　　Jason Swencki's son, Kody, was diagnosed with type diabetes at six. Father and son visit the online children's forums(论坛) together most evenings.“Kody gets so excited, writing to kids from all over，” says Swencki, one of the site's volunteers. “They know what he's going through, so he doesn't feel alone.”

　　Kody is anything but alone: Diabetes is now the seventh leading cause of death in the United States, with 24 million diagnosed cases. And more people are being diagnosed at younger ages.

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