Read the following text to answer question.
Read the following text to answer questions 15 to 18. Simply stated, computational linguistics is no more than the use of electronic digital computers in linguistic research. These machines are employed to scan texts and to produce, more rapidly and more reliably than is possible without their aid, such valuable tools for linguistic and stylistic research as word lists, frequency counts, and concordances. But more interesting and theoretically much more difficult than the compilation lists, is the use of computers for automatic grammatical analysis andtranslation. A considerable amount of progress was made in the area of machine translation in the United States, Great Britain, the Soviet Union, and France between the mid- 1950's and the mid-1969's, but much of the original impetus for this work has now disappeared, due in part to the realization that the problems involved are infinitely more complex than was at first envisaged. Thus, translation continues to remain as much anart as a science, ifnot more so.
STANLEY, Nancy. The best TOEFL test book. Massachusetts: Addison-Wesley, 1984.
According to the text, machines have proved to be helpfulto linguistic researchers because
