有两个题目做了之几次还是不对， 是否可以请会的人看一下， 谢谢。 On 1 January 2002, a 9.0 percent coupon rate bond with a par value of $1,000 and 10 years to maturity had a discount rate of 8.0 percent. Because of an upgrade in the bond's rating on 1 January 2003, the discount rate decreased to 7.7 percent. If interest is paid annually, the change in the bond's price form 2002 to 2003 attributable only to the passage of time is closest to : 我知道的是利率降低，价格应该是升高， 2002年的现值是-1,067.10没有问题， 但是2003却一直算错， 请问一下2003我的N是否要代9 ??? I是要代7.7吧??? 请指正一下我的错误 答案是 -4.63 A price-weighted series is composed of the following three common stocks 股票A 流通在外股数1,000,000 价格为10 股票B 流通在外股数5,000,000 价格为20 股票C 流通在外股数6,000,000 价格为30 If stock C completes a two-for -one stock split, the value of the index after the split will be closest to 这题的分子不知道要代多少去除， 还有就是two-for-one stock split中文应该是两股合一股吗??? 唉…英文差就是… 头大… 答案是20 --

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