We need to know something about the structure and operation of science because_________. A. it is not easy to understand the things that excite and frustrate scientists B. science affects almost every aspect of our life C. scientists live in a specific subculture D. it is easier to understand general characteristics of science
[解析]由第一段中的Science is a dominant theme in our culture．Since it touches almost every facet of our life。educated people need at least some acquaintance with its structure and operation．可以推断B项为正确答案。
D Educators are seriously concerned about the high rate of dropouts among the doctor of philosophy candidates and the consequent loss of talent to a nation in need of PhDs. Some have placed the dropouts loss as high as 50 percent. The extent of the loss was, however, largely a matter of expert guessing. Last week a well-rounded study was published. It was based on 22,000 questionnaires sent to former graduate students who were enrolled in 24 universities and it seemed to show many past fe
Which of the following best describes the writer’s idea? A. Women should get equal pay for equal work to that of men. B. Women should strengthen (加强) themselves. C. The Government ought to protect women against getting paid less than men. D. Some of the jobs that women do are of great importance.