According to the passage, what does American rootlessness result from?
A．the root industry of producing food
B．the promised land on the terrestrial horizon
C．social stability and pessimism about future
D．social mobility and optimism about the future

听力原文： The White House on Wednesday is expected to project a U.S. budget deficit for this year of just over $ 200 billion, down from prior estimates because of strong tax receipts, Republican sources said. A deficit for fiscal 2007 in that range would mark a decline from the $ 248 billion gap recorded last year. When President George W. Bush sent Congress his annual budget in February, he forecast that this year' s deficit would decrease only slightly to $ 244 billion. But robust tax collections this spring, bolstered by bigger paychecks for individuals and capital gains from a strong stock market, has brought down deficits faster than anticipated, even as the Iraq war has contributed to hefty spending increases in recent years.What is the deficit for fiscal 2006?A．Over $ 200 billion.B．$ 248 billion.C．$ 244 billion.D．Not mentioned. 点击查看答案

听力原文： A federal law that requires people to supply their Social Security number when applying for a marriage license has forced thousands of couples around the country, particularly illegal immigrants, to put their wedding plans on hold. The law has been on the books for about a decade and was intended to make it easier to collect child sup- port payments. But in some places it has prevented even legal immigrants and some American citizens from getting married. Federal law requires states to record the Social Security numbers of all applicants for a professional license, driver's license, recreational license or marriage license. And Social Security numbers are not available to those who are in this country illegally or do not have permission to work. But whether and how the law is enforced varies dramatically from state to state, and even from county to county, with some authorities interpreting the law as saying that only those people who already have Social Security numbers need to supply them. But whether and how the law is enforced varies dramatically from state to state, and even from country to country, with some authorities interpreting the law as saying that only those people who already have Social Security numbers need to supply them.What is the purpose of the mentioned federal law?A．To prevent illegal immigrants from getting married.B．To facilitate the collection of child support payments.C．To prevent citizens from getting married.D．To put people's wedding plans on hold. 点击查看答案