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下面的短文后有2项测试任务：(1) 第23～26题要求从所给的6个选项中第2、4、5、6每段选择1个最佳标题；(2) 第27～30题要求从所给的6个选项中每个句子确定一个最佳选项。

1 Do you know a child who survived leukemia (白血病) ? Do you have a mother, sister or aunt whose breast cancer was found early thanks to a mammogram (乳腺X光照片) ? Do you have a friend or coworker who quit smoking to reduce their risk of lung cancer? Each of these individuals benefited from the American Cancer Society's research program.
2 Each day scientists supported by the American Cancer Society work to find breakthroughs that will take US one step closer to a cure. The American Cancer Society has long recognized that re search holds the ultimate answers to the prevention, diagnosis and treatment of cancer.
3 As the largest source of nonprofit cancer research funds in the United States, the American Cancer Society devotes over $100 million each year to research. Since 1946, they've invested more than $ 2.4 billion, in research. The investment has paid rich dividends(回报、效益). In 1946 ,only one in four cancer patients was alive five years after diagnosis;today 60 percent live longer than five years.
4 Investigators and health professionals in universities, research institutes and hospitals throughout the country receive grants from the American Cancer Society. Of the more than 1,300 new applications received each year, only 11 percent can be funded. If the American Cancer Society had more money available for research funding, nearly 200 more applications considered outstanding could be funded each year?
5 You can help fund more of these applications by participating in the American Cancer Society Relay(拉力) for Life, a team event to fight cancer. More funding means more cancer break throughs and more lives being saved. To learn more, call Donna Hood, chair with the Neosho Relay for Life of the American Cancer Society at 451-4880.

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