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【单选题】
Tuition and fees at a state university are $5,000 per year. If Sara starts college this year she must quit her $25,000 per year job. Tyler is unemployed and also thinking of going back to school. Based on this information, which of the following is correct?A.
The opportunity cost of attending the university is the same for each student.
B.
Sara's opportunity cost of attending the university is greater than Tyler's opportunity cost of attending the university.
C.
Tyler would be more likely to attend the university if he suddenly found a full-time job.
D.
Tyler's opportunity cost of attending the university is greater than Sara's opportunity cost of attending the university.
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【简答题】已知一种息票利率为6％的债券每年付息，如果它离债券到期还有3年且到期收益率为6％。求该债券的久期。如果到期收益率为10％。久期又为多少?
【简答题】某债券还有3年到期，到期的本利和为153.76元，该债券的年利率为8%（单利），则目前的价格为多少元？
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