第2题: [单项选择]以下说法不正确的是()。 A. 风险价值常用计算方法有参数法、历史模拟法与蒙特卡洛法。 B. 某投资组合在持有期l年,置信水平为90%的情况下,若风险价值为-0.55%,则该组合在1年中损失有90%的可能性超过-0.55%。 C. 参数法又称方差-协方差法 D. 参数法依据历史数据计算风险因子收益率分布的参数值 参考答案:B 答案解析:该组合在1年中损失有90%的可能性不会超过-0.55%。
第18题: [填空题]What are the scientist doing last in order to piece together the instruction book for human biology A. A.They draw the genetic maps B.They grow pure human DNA C.They let a computer read its chemical sequence.
第29题: [单项选择]It can be inferred from the passage that the economic foundation of society is dependent on ______. A. the ability to make money B. the will to work for pleasure C. the capacity to enjoy incentives D. the categorizations of our emotional experiences 参考答案:C 答案解析:第一段说社会经济支柱也会受到影响是因为earning S10 million would be no more pleasant than earning $10,there would be no
第30题: [单项选择]不同来源的同种细菌称为() A. 种 B. 亚种 C. 菌株 D. 型 E. 异种 参考答案:C 答案解析:临床上常将来源不同的相同细菌称为菌株。