(D) Personnel of the republic's armed services are strongly encouraged to finish their high school education.
(E) The proportion of recruits who had completed at least two years of college education was greater in 1986 than in 1980.
21. Historian: We can learn about the medical history of individuals through chemical analysis of their hair. It is likely, for example, that Isaac Newton's psychological problems were due to mercury poisoning; traces of mercury were found in his hair. Analysis is now being done on a lock of Beethoven's hair. Although no convincing argument has shown that Beethoven ever had a venereal disease, some people hypothesize that venereal disease caused his deafness. Since mercury was commonly ingested in Beethoven's time to treat venereal disease, if researchers find a trace of mercury in his hair, we can conclude that this hypothesis is correct.
Which one of the following is an assumption on which the historian's argument depends?
(A) None of the mercury introduced into the body can be eliminated.
(B) Some people in Beethoven's time did not ingest mercury.
(C) Mercury is an effective treatment for venereal disease.
(D) Mercury poisoning can cause deafness in people with venereal disease.
(E) Beethoven suffered from psychological problems of the same severity as Newton's.
22. In 1992, a major newspaper circulated throughout North American paid its reporters an average salary paid by its principle competitors to their reporters. An executive of the newspaper argued that this practice was justified, since any shortfall that might exist in the reporters' salaries is fully compensated by the valuable training they receive through their assignments.
Which one of the following, if true about the newspaper in 1992, most seriously undermines the justification offered by the executive?
(A) Senior reporters at the newspaper earned as much as reporters of similar stature who worked for the newspaper's principle competitors.
(B) Most of the newspaper's reporters had worked there for more than ten years.
(C) The circulation of the newspaper had recently reached a plateau, after it had increased steadily throughout the 1980s.
(D) The union that represented reporters at the newspaper was different from the union that represented reporters at the newspaper's competitors.
(E) The newspaper was widely read throughout continental Europe and Great Britain as well as North America.
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