People appear to be born to compute. The numerical skill of children develop so early and so inexorably that it is easy to imagine an intern... .[托福考试]

Botany, the study of plants, occupies a peculiar position in the history of human knowledge. 　For many thousands of years it was the one fi... .[托福考试]

Questions 41-50; 　The healing power of maggots is not new. Human beings have discovered it several times. The Maya are said to have used m... .[托福考试]

Questions 22-31 　People of Hispanic origin were on the North American continent centuries before settlers arrived from Europe in the early... .[托福考试]

Questions 32-40 　Considered the most influential architect of his time, Frank Lloyd Wright (1867-1959) was born in the small rural communi... .[托福考试]