Average fuel efficiency of domestic cars manu- factured after 1988 was better than that of imported cars manufactured before 1988.
Average fuel efficiency of newly manufactured domestic cars has steadily worsened since 1988.
Average fuel efficiency of newly manufactured imported cars has steadily worsened since 1988.
Average fuel efficiency of newly manufactured imported cars has steadily improved since 1983.
Average fuel efficiency of imported cars manu- factured in 1983 was better than that of imported cars manufactured in 1988.
3. Between 1970 and 1980, energy consumption by United States industry peaked and then declined, so that by 1980 total industrial use of energy was below the 1970 level even though total industrial output had grown substantially in the same period. Industry must have instituted highly effective energy conser- vation measures in those years to have achieved such impressive results. Which of the following, if true, most seriously weak- ens the conclusion of the argument?
Many industries switched to the greatest extent possible from high-priced oil to lower-priced alternatives throughout the 1970s.
Total residential energy consumption was higher in the United States in 1980 than it had been in 1970
Many industrial users of energy had paid little attention to energy conservation prior to 1970.
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