[填空题]There are now over 700 million motor vehicles in the world and the number is rising by more than 40 million each year. The average distance driven by car users is growing too--from 8 km a day per person in Western Europe in 1965 to 26 km a day in 1995. This dependence on motor vehicles has given rise to major problems, including environmental pollution, depletion of oil resources, traffic congestion and safety.
While emissions from new ears are far less harmful than they used to be, city streets and motorways are becoming more crowed than ever, often with older trucks, buses and taxis, which emit excessive levels of smoke and fumes. This concentration of vehicles makes air quality in urban areas unpleasant and sometimes dangerous to breathe.
In Europe most cities are still designed for the old modes of transport. Adaptation to the motor car has involved adding ring roads, one-way systems and parking lots. In the United Sates. more land is assigned to car use than to housi

[填空题]There are now over 700 million motor vehicles in the world and the number is rising by more than 40 million each year. The average distance driven by car users is growing too--from 8 km a day per person in Western Europe in 1965 to 26 km a day in 1995. This dependence on motor vehicles has given rise to major problems, including environmental pollution, depletion of oil resources, traffic congestion and safety.
While emissions from new ears are far less harmful than they used to be, city streets and motorways are becoming more crowed than ever, often with older trucks, buses and taxis, which emit excessive levels of smoke and fumes. This concentration of vehicles makes air quality in urban areas unpleasant and sometimes dangerous to breathe.
In Europe most cities are still designed for the old modes of transport. Adaptation to the motor car has involved adding ring roads, one-way systems and parking lots. In the United Sates. more land is assigned to car use than to housi

[单项选择] The Motor Car There are now over 700 million motor vehicles in the world — and the number is rising by more than 40 million each year. The average distance driven by car users is growing too—from 8 km a day per person in western Europe in 1965 to 25 km a day in 1995. This dependence on motor vehicles has given rise to major problems, including environmental pollution, depletion of oil resources, traffic congestion and safety. Problems While emissions (废气排放) from new cars are far less harmful than they used to be, city streets and motorways are becoming more crowded than ever, often with older trucks, buses and taxis, which emit excessive levels of smoke and fumes. This concentration of vehicles makes air quality in urban areas unpleasant and sometimes dangerous to breathe. Even Moscow has joined the list of capitals suffered form congestion and traffic fumes. In Mexico City, vehicle pollution is a major health hazard. Until a
A. Y
B. N
C. NG