(C) pile high

　　(D) work over

　　16. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly.

　　The word "raw" is closest in meaning to which of following?

　　(A) stormy

　　(B) inaccurate

　　(C) uncooked

　　(D) unprocessed

　　17. People in the United States in the nineteenth century were haunted by the prospect that unprecedented change in the nation's economy would bring social chaos.

　　The word "Prospect" is closest in meaning to which of following?

　　(A) regret

　　(B) possibility

　　(C) theory

　　(D) circumstance

　　18. Although the birth rate continued to decline from its high level of the eighteenth and early nineteenth century, the population roughly doubled every generation during the rest of the nineteenth centuries. As the population grew, its makeup also changed.

　　The word "roughly" is closest in meaning to which of following?

　　(A) harshly

　　(B) surprisingly

　　(C) slowly

　　(D) approximately

　　19. Rapid industrialization and increased geographic mobility in the nineteenth century had special implications for women because these changes tended to magnify social distinctions. As the roles men and women played in society became more rigidly defined, so did the roles they played in the home.

　　The word "magnify" is closest in meaning to which of following?

　　(A) solve

　　(B) explain

　　(C) analyze

　　(D) increase

　　The word "distinctions" is closest in meaning to which of following?

　　(A) differences

　　(B) classes

　　(C) accomplishments

　　(D) characteristics

　　20. In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced.

　　The word "related" is closest in meaning to which of following?

　　(A) connected

　　(B) described

　　(C) completed

　　(D) identified