单项选择题
A．Traffic Crowding in New York City B．Air Pollution in New York City by Cars C．Special Lanes for Passengers D．A Solution to Traffic Problems in New York
A．are more convenient than cars B．are safer traffic tools than cars C．are ridden by most people in U.S. D．are the solution to some city problems
A．Washington's lack of formal education placed him at a disadvantage in later life B．Washington should have gone to France even though be could not speak French C．Washington was not as good as a president as Adams, Jefferson or Madison D．Washington was a model for all Virginian gentlemen