中石油职称英语
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[单项选择]There is a growing realization that the only effective way to achieve further reductions in vehicle()is to replace conventional diesel fuel and gasoline with cleaner-burning fuels.
A. permission
B. emission
C. omission
D. Mission
[单项选择]The car will be guided by a differential GPS system that corrects errors()in global positioning satellite signals.
A. arising
B. rise
C. raise
D. arouse
[单项选择]However, since methanol-fueled vehicles could be designed to be much more()than gasoline clone vehicles fueled with methanol, they would need comparatively less fuel.
A. effective
B. efficient
C. sufficient
D. supplement
[单项选择]Although recent years have seen substantial reductions in noxious pollutants from individual motor vehicles, the number of such vehicles().
A. have been steadily increasing
B. has been steadily increased
C. has been steadily increasing
D. have been steadily increased
[单项选择]Henry and Tom()to the particles at the Trade Union every Saturday.
A. used to go
B. were used to go
C. are used to go
D. ues to go
[单项选择]Consequently, more than 100 cities in the United States still have levels of carbon monoxide, particulate matter, and ozone that()legally established limits.
A. succeed
B. proceed
C. exceed
D. excess
[单项选择]Ethanol and methanol have important advantages()other carbon-based alternative fuels.
A. on
B. over
C. by
D. with
[单项选择]It is currently about()as methanol.
A. twice as expensive as
B. as twice expensive as
C. as expensive twice as
D. expensive as twice as
[单项选择]Ethanol is commonly used as a gasoline supplement, but it is currently about()methanol.
A. twice as expensive as
B. twice as more expensive as
C. as twice more expensive as
D. as twice expensive as
[单项选择]There is a growing realization that the only()way to achieve further reductions in vehicle emissions is to replace conventional diesel fuel and gasoline with cleaner-burning fuels.
A. effective
B. efficient
C. sufficient
D. Supplement
[单项选择]Vehicles()only the simplest of the engine improvements that methanol makes feasible would still contribute to an immediate lessening of urban air pollution.
A. corporate
B. cooperating
C. operating
D. incorporating
[单项选择]All of these alternatives are carbon-based fuels()molecules are smaller and simpler than those of gasoline.
A. which
B. who
C. what
D. whose
[单项选择]On the other hand, alternative fuels do have().
A. drawbacks
B. setback
C. drawer
D. backward
[单项选择]The combustion of larger molecules,()have multiple carbon-carbon bonds involves a more complex series of reactions.
A. what
B. which
C. that
D. who
[单项选择]GM envisions a system()the Mobility Internet.
A. calling
B. call
C. calls
D. called
[单项选择]At a rough estimate,Nigeria is()Great Britain.
A. three times as big as
B. three times as bigger as
C. as three times big as
D. as three times gigger as
[单项选择]These reactions increase the probability of incomplete combustion and are more likely to()uncombusted and photochemically active hydrocarbon compounds into the atmosphere.
A. lease
B. release
C. please
D. relief
[单项选择]Methanol’s most attractive feature is that it can reduce()about 90 percent the vehicle emissions.
A. of
B. in
C. on
D. by
[单项选择]The hydrocarbons they do emit are less likely to()ozone.
A. general
B. generation
C. generate
D. generous
[单项选择]Ethanol is commonly used()a gasoline supplement.
A. for
B. to
C. by
D. as
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