[简答题]class rates

[单项选择]
For centuries，the currencies of the world were backed by gold．That is，a piece of paper currency issued by any world government represented a real amount of gold held in a vault by that government．In the 1930s，the U.S.set the value of the dollar at 8 single，unchanging level：l ounce of gold was worth $35．After World War II，other countries based the value of their currencies on the U.S.dollar．Since everyone knew how much gold a U.S.dollar was worth，then the value of any other currency against the dollar could be based on its value in gold．A currency worth twice as much gold as a U.S.dollar was，therefore，also worth two U.S.dollars．
Unfortunately，the real world of economics outpaced this system．The U.S.dollar suffered from inflation(its value relative to the goods it could purchase decreased)，while other currencies became more valuable and more stable．Finally，in 1971，the U.S.took away
A. After World War I
B. After World Wat II
C. In 1930s
D. In 1960s

[单项选择]Troubled by the persistently poor graduation rates of basketball and football players, the National Collegiate Athletic Association plans to start punishing schools whose athletes continue to underperform in the classroom. The proposal, which is expected to adopt next month, is being proposed by NCAA President Myles Brand as the final and critical piece of a package of changes designed to boost graduation rates and put the student back into the often-mocked term, student-athlete.
Even supporters of the plan, however, worry that it will prove impractical, characterizing it as a well-intentioned idea that has been weakened by compromise and will ultimately generate more paperwork than real change. There’s also broad acknowledgement that it may cause unintended consequences of academic deception: more schools offering dishonest courses and cut-down curricula, and heightened pressure on faculty to give passing grades to keep star players qualified.
But with the continued acad
A. help student athletes play better in the coming matches
B. raise the academic level of those student athletes
C. cut funding to colleges for their poor performance in sports
D. boost the academic researches of colleges and universities

[单项选择]The reported mortality rates from contemporary African famines are inaccurate, due partly to the difficulties of collecting such information, but also to international agencies’ tendency to___________ figures in order to emphasize need for support.


A. evaporate
B. exaggerate
C. exemplify
D. exempt

[单项选择]The underclass suffers from relatively high rates of unemployment, alcoholism, drug addiction, illiteracy, juvenile delinquency, and crime. For them, schools have deteriorated, and affordable housing is increasingly difficult to find. Neighborhoods lack adequate police protection, fire services, and shops, as well as hospitals, clinics, and other health-care facilities. Future prospects are especially bleak for the underclass because they are increasingly unable to compete for jobs. Inner-city residents lack the technical skills needed to obtain most jobs, because fewer than half complete high school. The gap between the skills typically demanded by employers and the training of inner-city residents is getting much larger. In the past, people with limited education could become factory workers or filing clerks, but today these jobs require knowledge of computing and handling electronics. Meanwhile, inner-city residents don’t even have access to the remaining low-skilled jobs, such
A. Chief Board of Directors
B. Central Bank of Development
C. Central Business District
D. Chief Business Developers