单选题 Not only is this a deadly way to practice medicine, but it's also a breathtakingly expensive one. In 2005 Americans paid out a record 16% of our gross domestic product for health care--a cool $ 2 trillion - making US the world's top spender on health care per capit

• a. You might think we'd be getting some bang for those bucks, but our leading killer remains what it has been every year since 1900 (with the exception of 1918, when influenza claimed more lives ): heart disease, which kills nearly 650,000 of us each year. "The reason we rank so poorly is that we don't provide a basic - wellness infrastructure, "says Dr. Mehmet Oz, director of the cardiovascular institute at the Columbia University Medical Center and a host on the Discovery Health Channel.
  How much did the Americans pay for health care in 2005?A. 16% of their income.B. US $ 650,000C. US $ 2 i000,000,000,000D. US $1900 to US $1918 per person.