A if the term vegetarian cannot be misleading

 
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C) is a promotion where competence qualities promotion to the next
D) is a post that in a hierarchy every employer tends to rise to
E) is the level that the incompetent employees demand to he promoted to.
17. That the competence is essential ..............
A) is supposed by the Principle for promotion to the next one. 
B) is assumed by the Principle as a constant quest for high 
performance.
C) is for each individual who's arrived at a job beyond his abilities.
D) is obviously for the employees who are at their level of incompetence.
E) is for a post which is occupied by an employee who is incompetent to carry out its responsibilities.
18. The conclusion shown from the Peter Principle ............. . 
A) is that in a hierarchy every employee who is incompetent tends to rise to his level of incompetence. 
B) is that it is derived from the analysis of the hundreds of cases of incompetence in organizations which 
can be seen anywhere 
C) is assuring periodic request for high performance. 
D) is that having the employees do still better is possible by never providing promotion for them. 
E) is that in time every post tends to be occupied by an person who's supposed to be incompetent to carry 
out its requirements. 
Doctors began treating malaria long before they knew what caused it. The first recorded breakthrough came 
in the 17th century, when European missionaries learned that the bark of South- American cinchona trees 
contained the potent but toxic remedy now known as quinine. By the time pharmaceutical companies 
developed reliable supplies, in the 1920s, a better treatment was imminent. Chloroquine, introduced in 1943 
by the U.S. Military, was as potent as quinine -yet it was longer active, cheaper to produce and so well 
tolerated that people no longer had to wait passively for malaria to strike. They could take regular doses in 
order to prevent the disease. 
19. Before 1943,..................... 
A) It was impossible for people to use a drug for the treatment of malaria, 
B) The existing drugs were not as safe as to use for prevention of the disease as well as a cure. 
C) There existed no pharmaceutical solutions to treat the disease. 
D) The drugs that were routinely used were reliable but not active long enough 
E) Quinine was the only safe drug to treat malaria radically 
20. The first remedy for the disease dates as back as to 300 years ago even though............... 
A) it was historically recordable as important for the disease. 
B) reliable drugs were not discovered until after 1943. 
C) only the bark of a North American tree was the solution. 
D) it was venomous and unsafe to use as tolerably as those drugs used now. 
E) doctors had also been totally successful in treating the disease before. 
21. Chloroquine is different from quinine in that......................... 
A) it was developed by the military during a war 
B) it was twice as potent as quinine although it had certain weaknesses 
C) it could be taken to prevent the disease as well as to cure it after infection 
D) unfortunately, it was not so reliable as the latter 
E) it was toxic enough to kill an adult 
The death rate from heart disease has dropped by half since the mid-1960s. However, studies consistently 
find that the improvement has less to do with treatment than with changes in diet and lifestyle. In a 1988 
study Dr. Lee Goldman, a Harvard cardiologist, analyzed the decline in cardiac death between 1968 and 

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