[求助]prep 1-41

41.        (32917-!-item-!-188;#058&006462)

In the
two years following the unification of Germany in 1989, the number of cars owned by residents of
East Germany and the total
distance traveled by cars in East Germany both increased by about 40 percent.  In those two years, however, the number of East German residents
killed each year as car occupants in traffic accidents increased by about 300 percent.

Which of
the following, if true, most helps to explain the disproportionate increase in
traffic fatalities?

(A) The
average number of passengers per car was higher in the years before unification
than it was in the two years after.

(B)
After unification, many people who had been living in East Germany relocated to
West Germany.

(C)
After unification, a smaller proportion of the cars being purchased by East
German residents were used vehicles.

(D) Drivers who had driven little or not at all before 1989
accounted for much of the increase in the total distance traveled by cars.

(E) Over
the same two-year period in East Germany, other road users, such as
motorcyclists, bicyclists, and pedestrians, experienced only small increases in
traffic fatalities.

正确答案是D.不理解D说的意思。