Todays 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 fuel-efficient technologies aggressively. The particular reluctance of the United States automobile industry to do so, however, could threaten the industrys 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 . permitted for drawing fuel samples B . permitted for draining fuel from lines C . permitted for bleeding air from lines D . prohibited

A . to the top to expel all vapors from the tanks B . to the top so the operator is certain how much fuel he has aboard C . with only sufficient fuel for the planned trip so excess gasoline is not carried D . to near the top with some space allowed for gasoline expansio

A . In open air B . Inside cabins near the overhead C . In the machinery space near the engine air intake D . Underwater

A . 5 volts, the output changes 10 volts B . 10 volts, the output changes 5 volts C . 2 volts, the output changes 10 volts D . 10 volts, the output changes 2 volt

A . in the engine compartment B . in the fuel tank space C . above or outside the hull D . at the most convenient locatio

A . in contact with the fill opening to guard against static spark B . from making contact with the fill opening to guard against static spark C . in contact with the fill opening to allow proper venting D . None of the above

A . they are more heavily built B . the fuel used is less volatile C . they can be easily reversed D . they operate at a lower speed

A . 1 volt, the output changes 5 volts B . 5 volts, the output changes 1 volt C . 5 volts, the output changes 10 volts D . 10 volts, the output changes 5 volt

A . in open air B . inside cabins C . in machinery space D . underwater

A . twice as expensive as B . twice as more expensive as C . as twice more expensive as D . as twice expensive a

A . keep ports，doors，windows，and hatches closed B . start engines immediately C . ventilate before starting engine D . None of the above

A . settle near the bottom of the bilge B . settle near the top of the bilge C . settle evenly throughout all levels of the bilge by mixing with air D . disperse to atmosphere

A . above the floor plates of the bilges B . above the carburetor level C . at the lowest point of the bilge areas D . at no particular level

A . cross-head B . cylinder C . connecting rod D . spark plug

A . Most inexpensive B . Save money C . Low cost D . Economically

A . They are heavier than air and will settle in the lowest part of the vessel B . They are lighter than air and will settle in the highest part of the vessel C . They should be vented into the engine to improve combustion D . They should be vented into the wheelhouse

A、brought B、turned C、called D、refused

A . for B . to C . by D . a

A、很容易蒸发 B、 很容易爆炸

A. Right B. Wrong C. Not mentioned

A．technology B．economic assets C．access to information D．time

Todays 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 fuel-efficient technologies aggressively. The particular reluctance of the United States automobile industry to do so, however, could threaten the industrys 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．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.

A. It is different for male and female students. B. It is not the same as that of earlier generations. C. It is more exhausting than most women expect. D. It is not so satisfying to many American students.