37、Questions 37-46 are based on the following passage.
At the beginning of the last century,the railroads were used to transport everythin9.Powerful businessmen made36 __ without having to be responsible for the public or 37 __ of the customers.But cars and trucks changed all of that.And by l970.from all directions the rail industry was troubled with problems.Trucks were taking all the new business.And even so.the rail industry remained 38 __ to customers.Also many regulations kept the rail industry from adjusting to shifting markets.But in l980,the rail industry entered the modern era when a deregulation was passed that allowed railroad companies to makequick39 __ to the old practices.Companies reduced their lines by l/3 and used fewer employees.They also took steps to 40 __ damage to products to smallest possible degree and to increase their shipping 41 __ by piling freight containers on railroad cars.To accommodate these taller loads.underpasses and tunnels were 42 __.The image of the rail industry has changed 43 __.Today,companies are very sensitive to customers and are gaining increasing market shares in shipping industry.The railroad safety record is also stron9.Freight trains have an44 __ rate that is only l/30f that of the truck industry.Trains are also known as ahead of the trucks on environmental grounds.Because they give off only l/10 t01/3 the pollution that is 45 __ by trucks.And railroading does not wear out highways as trucks do.
A.decline
B.lessen
C.accident
D.comparison
E.emlitted
F.dramatically
G.capacity
H.indifferent
I.fortunes
J.considerate
K.similar
L.adjustment
M.enable
N.enlarged
O.broadened
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46、第(45)题应填__________