[填空题]Researchers have found more evidence that suggests a relationship between race and rates of lung cancer among smokers. Some (26) have shown that blacks arc more likely than whites to get lung cancer from smoking.
Researchers at the University of Southern California and the University of Hawaii did the new study. The New England (27) of Medicine (28) the findings.
The eight-year study (29) more than one hundred eighty thousand people. They provided (30) about their tobacco use and their diet as well as other information. They included (31) and former smokers and people who never smoked. Almost two thousand people in the study developed lung cancer.
Researchers say (32) might help explain the racial and ethnic differences. There could be differences in how people’s bodies react to smoke. But (33) influences, including the way people smoke, could also make a difference.
Afri

[填空题]Researchers have found more evidence that suggests a relationship between race and rates of lung cancer among smokers. Some (26) have shown that blacks arc more likely than whites to get lung cancer from smoking.
Researchers at the University of Southern California and the University of Hawaii did the new study. The New England (27) of Medicine (28) the findings.
The eight-year study (29) more than one hundred eighty thousand people. They provided (30) about their tobacco use and their diet as well as other information. They included (31) and former smokers and people who never smoked. Almost two thousand people in the study developed lung cancer.
Researchers say (32) might help explain the racial and ethnic differences. There could be differences in how people’s bodies react to smoke. But (33) influences, including the way people smoke, could also make a difference.
Afri

[填空题]Standage suggests that tea may have been more responsible than rum for the independence movement in Britain’s American colonies.

[单项选择]

Researchers produced evidence to support what most of us already knew--that a cup of tea is the answer to any crisis.
Dr. Malcolm Cross, a psychologist at City University London, tested the anxiety levels of a group of people following a (51) situation and revealed that even a single cup of tea has a (52) calming effect. His team gave 42 volunteers a mental arithmetic exam and (53) offered half of them a cup of tea and the other half a glass of water. The water group’s anxiety levels soared (54) 25 percent compared to before the task, (55) the tea group actually reported a four percent reduction in anxiety--despite the difficult test, they were more relaxed than when they started.
According to a survey carried out for the research, 68 percent of Britons (56) tea in a dilemma, making it the nation’s most common response to trouble of (57) kind. About 60 percent said the promise of comfort an
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