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GRE 33-Verbal Question 3

By Unknown
The development of hydrogen-powered cars will always be ____(i)____ by the physical fact that hydrogen, while containing more energy
per gallon than does gasoline, is much less dense than gasoline; hydrogen thus carries less energy per pound, making it ____(ii)____ for
any vehicle to carry enough hydrogen on board for long trips.


i)enhanced   hindered   parodied

ii)convenient   austere  ungainly


hindered and ungainly
The trigger while introduces two conflicting aspects of hydrogen-powered cars. The first clue states that hydrogen contains more
energy per gallon than does gasoline, which would seemingly aid the development of hydrogen-powered cars; since the trigger
changes the direction of the sentence, though, a word that means made more difficult would make sense in the first blank. Of the
choices, only hindered fits. Both the semicolon and the thus tell you that the second blank agrees with the first, so you need a word
that means something like difficult or awkward. Of the choices, only ungainly makes sense.
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