Ancient playwrights tended to be less willing to violate certain conventions early in their careers than they were late
2.In the United States, average fuel efficiency of newly manufactured domestic cars, although remaining worse than that of newly manufactured imported cars, substantially improved between 1983 and 1988. Average fuel efficiency of new domestic cars has not improved since, but the difference in average fuel efficiencies of new domestic cars and new imported cars has steadily decreased. If the statements above are true, which of the following must also be true on the basis of them?
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?
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