[填空题]Researchers are getting more and more interested in making ______.

[填空题]Researchers are getting more and more interested in making ______.

[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]Getting More from Fields

[判断题]The kids were getting more and more dependent on computer and CD-ROM for information.

[单项选择] Researchers are increasingly interested in manipulating the environment early in children’’s lives when they are perceived to be at risk for impoverished intelligence. In a program conducted in North Carolina by Craig Ramey and his associates, pregnant women with IQs averaging 80 were recruited for a study. After their babies were born, half of the infants were cared for during the day at an educational day-care center and half were reared at home by their mothers. Both groups of children were given medical care and dietary supplements, and their families were given social services if they requested them. At the age of 3, the children who attended the educational day-care center had significantly higher IQs than did the home-reared children. This difference was likely due to the decline in the IQs of the home-reared children during the period from 12 to 18 months of age. By the time the children were 5 years old, 39 percent of the home-reared children had IQs below 85 but only 1
A. have increased the risks to child growth by manipulating the natural environment
B. are increasingly aware of the effects of environmental factors on intelligence development
C. are increasingly interested in figuring out how intelligence is developed in early childhood
D. are increasingly interested in manipulating the environment without being aware of the risks involved to children