Exchange Rates:A Brief History of Exchange
Rates 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 A. After World War I B. After World Wat II C. In 1930s D. In 1960s [填空题]Questions 1--3 Choose the best answer.
According to the article, ______. A. people who have eaten too much fast food and become fat and ill lack self-control B. people may experience changes in their brain and body if they take in too much fat and sugar C. it is established that fast food is as addictive as tobacco D. fast food companies try to cover up the truth about fast food [填空题]Questions 1--3 Choose the best answer.
Lawsuit against the fast-food industry ______. A. is dismissed by the judge as frivolous B. is expected to win John Banzhaf commendation C. is regarded by many people as absurd D. is supposed to lead to the bankruptcy of the fast-food chains [单项选择]Questions 1--3 Choose the best answer.
The following statements are true except ______. A. ageing is a phenomenon pertaining to older persons B. different cultures have different even contrast images of ageing C. western media often convey more on the young people D. policy-designers used to believe that their society was still a youthful one 我来回答: 提交
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