更多"It is believed that the feeding pat"的相关试题:
[单项选择]My parents’ generation believed in the infinite possibilities of America.
A. True
B. False
[单项选择]Most parents who are generous are good parents, but some self-centered parents are also good parents. Yet all good parents share one characteristic: they are good listeners.
If all of the statements in the passage are true, which one of the following must also be true
A. All parents who are good listeners are good parents.
B. Some parents who are good listeners are not good parents.
C. Most parents who are good listeners are generous.
D. Some parents who are good listeners are self-centered.
E. (E) Fewer self-centered parents than generous parents are good listeners.
[单项选择]
Conservationists have believed that by concentrating their preservation efforts on habitats rich in an easily surveyed group of species, such as birds, they would thereby be preserving areas rich in overall species diversity. This belief rests on a view that a geographical area rich in one group of species will also be rich in the other group’s characteristic of the entire regional climate zone.
Which of the following findings about widely scattered tracts 10 kilometers by 10 kilometers in a temperate climate zone would most seriously challenge the conservationists’ assumptions（）
A. The tracts show little damage from human intrusion and from pollution by human activities
B. Where a certain group of species, such as birds, is abundant, there is also an abundance of the species, such as insects, on which that group of species feeds, or in the case of plants, of the land and water resources it requires
C. The area of one of the tracts is generally large enough to contain a representative sample of the organisms in the region
D. There is little overlap between the list of tracts that are rich in species of butterflies and the list of those that are rich in species of birds
E. The highest concentration of individuals of rare species is found where the general diversity of species is greatest
[单项选择]Bruce believed that it is important
A. to cope with ex-CEO.
B. to be always honest and open in managing the company.
C. to make every employee happy.
[填空题]Comparative Historical Linguistics believed that all languages originated from one language and were ruled by a common ______.
[单项选择]Why is corn feeding millions of people today
A. It can be cooked in many ways.
B. It is delicious but inexpensive.
C. It gives higher yields than other grain crops.
D. It grows easily in various conditions.
[单项选择]People once widely believed that intelligent life existed on Mars. The 19th-century discovery of what appeared to be geometric designs cut across the surface was taken as evidence. The lines were thought to have been a system of canals that had been built to irrigate the surface. It is now clear that the "canals"—perhaps the most spectacular geologic features of Mars—are natural valleys where ancient rivers once flowed.
Another fragmented idea concerns the planet’’s seasonal changes in color. Once attributed to the rapid spread of some life-form, these shifts are now known to develop from the movement of fine dust in the atmosphere.
By the close of the 20th century none of the many experiments conducted by spacecraft had ever found persuasive evidence of life. Nevertheless, speculation continued over the existence of some form of life, in either the present or past. In 1996 scientists discovered organic compounds and minerals in a meteorite (陨石), consisting of Martian rock, t
A. Because the surface of Mars seemed to be geometric.
B. Because the lines were drawn across the surface of the planet.
C. Because a system of canals was thought to be there.
D. Because it was the Martians that built the canals.
[单项选择]These are defensive behavior patterns which derive from our fears.（）
A. stem
B. rely
C. develop
D. grow
[填空题]Americans are slowly changing their patterns toward healthier diets. however, a considerable gap remains between recommended dietary patterns and what Americans usually eat. Information from CDC’s Behavioral Risk Factor Surveillance system indicates that only about one-fourth of U.S. adults eat the recommended five or more servings of fruits and vegetables each day. Between1987 and 1998, obesity among U.S. adults increased dramatically; more than 50% of adults are new overweight or obese.
Poor eating habits are often established during the childhood. More than 60% of young people eat too much fat, and less than 20% eat the recommended number of servings of fruits and vegetables each day. Between 10% and 15% of young people aged 6-7 years are considered overweight. The percentages of young people who are overweight has more than doubled in the last30 years.
People who are overweight are at increased risk for heart disease, high blood pressure, diabetes, and possibly
