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【简答题】

U.S. rates of disease and some cancers, (36) of the breast, are among the highest in the world. Many factors (37) to cancer and heart disease, including an individual’s genetic (38) . But when scientists trace the course of diseases across the globe, the role of (39) stands out sharply. Japan offers an example. Tile (40) Japanese diet is the direct (41) of ours: typically they eat rice, vegetables and a little fish, while Americans put a big (42) of meat in the center of the plate and add a few French fries. (43) only about a quarter as much fat as we do, and far more carbohydrates, the Japanese live longer than anybody else in the world. That is, until they move to the United States. (44) says Dr. Peter Greenwald, director of the Division of Cancer Prion and Control at the U.S. National Cancer Institute. "When they move to Hawaii, the rate goes up." (45) . Similar patterns are emerging all over the globe. "I’ve been in Mauritius, Cuba and Hungary, three completely different countries, advising their governments on nutrition education," says Marion Nestle, professor of nutrition at New York University. (46) .

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【单选题】1() A. have, used B. have been used C. has been used D. will be used

A.
In the people’s Republic of China the odd prequake behavior of horses and other animals (1) successfully to warn people that earthquakes (2) . Recently, a group of American geologists and geographers visited China and listened with great interest (3) the scientists there (4) explained how they have been able to predict many earthquakes in the past three years. The American scientists compared the (5) of the unique Chinese program (6) the impact of Chinese acupuncture (7) Western medicine.
B.
The Chinese scientists use (8) but they also monitor strange (9) such as various ground noises, the fluctuation of well-water levels, and the strange behavior of animals. The results are quite interesting, Chinese seismologists, for example, (10) predicted two magnitude 6.9 quakes near the China-Burma (11) on May 9,1976. The seismologists say that their predictions have been (12) precise that they were able to evacuate many of their people (13) an earthquake occurred, (14) saving thousands of lives. (15) , the Chinese experts also admit that there have been some false alarms.
C.
American scientists have (16) stories of unusual prequake animal behavior before, but they (17) them too seriously until their recent visit to China. "Maybe there’s (18) in it", said Jack Everndon, a California scientist. We need some kind of short-term warning. We need something.
D.
He didn’t mention the kind of research he may be considering, "Some of us are thinking it’s (19) enough to give it a serious look," he commented. "Two years ago we (20) that.