150- According to the passage, the study of history ..................... . A) began in the Middle Ages and reached its height in the Victorian Age
B) has changed greatly in our time
C) includes a great variety of interrelated subjects
D) should concentrate on the reconstruction of past events
E) requires a knowledge of dates and periods
The practical advantage of prefabrication are two-fold: it is quicker and it does away with
uncertainty. Speed in building is important these days because of the high cost of land: the time
during which such an expensive commodity is out of use must be reduced to a minimum. And partly
or wholly prefabricated methods of construction save time on the job because parts are prepared in
