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The earliest public library was also called a subscription library because books
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假定某企业2006年的销售成本为50万元。销售收入为100万元，年初资产总额为：70万元，年底资产总额为190万元。则其总资产周转率约为()。
根据Credit Risk+模型，假设某贷款组合由100笔贷款组成，该组合的平均违约率为2％，E=72，则该组合发生4笔贷款违约的概率为()。
SECTION C NEWS BROADCAST
Directions: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. At the end of each news item, you will be given 10 seconds to answer the questions.
听力原文： President Clinton has renewed his attacks on the American tobacco industry, accusing it of using delaying tactics to block anti-smoking legislation. The US Congress is considering a bill which would place tight restrictions on tobacco advertising and impose penalties on tobacco companies if they continue to sell cigarettes to children. Mr. Clinton said it was a fight with the lives of American children and he urged Congress to move ahead with the bill. But a spokesman for one of the big tobacco companies called the legislation totally unreasonable and he said the process had become wholly politicized.
The primary purpose of the US anti-smoking legislation is
According to the writer, part of chivalry is that ______.
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