[填空题]The low confidence level of consumers and producers is one of the general factors of a recession.

[填空题]The low confidence level of consumers and producers is one of the general factors of a recession.

[填空题]Consumers are encouraged to buy low-fat milk rather than ____________________.

[单项选择]Today’s low gasoline prices make consumers willing to indulge their preference for larger cars, which consume greater amounts of gasoline as fuel. So United States automakers are unwilling to pursue the development of new fuelefficient technologies aggressively. The particular reluctance of the United States automobile industry to do, so, however, could threaten the industry’s future.
Which of the following, if true, would provide the most support for the claim above about the future of the United States automobile industry
A. A prototype fuel-efficient vehicle, built five years ago, achieves a very high 81 miles per gallon on the highway and 63 in the city, but its materials are relatively costly.
B. Small cars sold by manufacturers in the United States are more fuel efficient now than before the sudden jump in oil prices in 1973.
C. Automakers elsewhere in the world have slowed the introduction of fuel-efficient technologies but have pressed ahead with research and development of them in preparation for a predicted rise in world oil prices.
D. There are many technological opportunities for reducing the waste of energy in cars and light trucks through weight, aerodynamic drag, and braking friction.
E. (E) The promotion of mass transit over automobiles as an alternative mode of transportation has encountered consumer resistance that is due in part to the failure of mass transit to accommodate the wide dispersal of points of origin and destinations for trips.

[单项选择](Low-level) cumulus clouds, mid-level altostratus clouds, and high-altitude cirrus clouds all (conveys) (information about) (their) atmospheric realms.（）
A. Low-level
B. conveys
C. information about
D. their

[填空题]A client may develop a high level of confidence in certain employee.

[单项选择]
Low-level slash-and-bum farming doesn’t harm rainforest. On the contrary, it helps farmers and improves forest soils. This is the unorthodox view of a German soil scientist who has shown that burnt clearings in the Amazon, dating back more than 1 000 years, helped create patches of rich, fertile soil that farmers still benefit from today.
Most rainforest soils are thin and poor because they lack minerals and because the heat and heavy rainfall destroy most organic matter in the soils within four years of it reaching the forest floor. This means topsoil contains few of the ingredients needed for long-term successful farming.
But Bruno Glaser, a soil scientist of the University of Bayreuth, has studied unexpected patches of fertile soils in the central Amazon. These soils contain lots of organic matter. Glaser has shown that most of this fertile organic matter comes from "black carbon"—the organic particles from camp fir
A. the composition of the topsoil is rather unstable
B. black carbon is washed away by heavy rains
C. organic matter is quickly lost due to heat and rain
D. long-term farming has exhausted the ingredients essential to plant growth