第19题: [单项选择]A. How to improve your reasoning ability. B. Why classical music is popular with math students. C. The difference between classical music and rock music. D. The effects of music on the results of math tests. 参考答案:D 答案解析:[听力原文] Do you have a tough math test coming up Then listen to some classical piano music jus
第33题: [单项选择]甲企业有一项年金,存续期为10年,前3年无现金流出,后7年每年年初现金流出200万元,假设年利率为8%,则该项年金的现值足( )万元。(已知PVA8%,7=5.2064,PV8%,3=0.7938) A. 792.69 B. 826.57 C. 765.34 D. 892.69 参考答案:D 答案解析:[解析] 该项年金的现值=200×PVA(8%,7)×PV(8%,3)×(1+8%)=200×5.2064×0.7938×(1十8%)=892.69(万元)