有一个正方形的花池，周围边长为25厘米的方砖铺了一条宽1.5米的小路，用去方砖1 发布时间：2017-06-13 11:43 │ 来源：www.tikuol.com 题型：解答题 问题： 有一个正方形的花池，周围边长为25厘米的方砖铺了一条宽1.5米的小路，用去方砖1776块，花池的面积是______平方米．
题型：解答题 下面词语中有四个错别字，请找出并改正。 栩栩如生 无精打彩 官运享通 不屑置辨 津津有味 唯唯连声 平起平坐 五彩斑澜错别字：__________________________改正：__________________________ 查看答案
题型：解答题 Based on the following information to answer questions from 39 to 40:A mortgage-backed security has been divided into three classes or tranches as follows:Tranche Ⅰ receives net interest and all the principal payments until it is completely paid off.Tranche Ⅱ receives its share of net interest and starts receiving all the principal repayments afterTranche Ⅰ has been completely paid off. Prior to that, it only receives interest payments.Tranche Ⅲ receives monthly net interest and starts receiving all principal repayments afterTranches Ⅰ and Ⅱ have been completely paid off. Prior to that, it only receives interest payments.For an investor who is interested in long-term gains, in which tranche should she invest（）A. Tranche Ⅲ.B. Tranche Ⅰ.C. Tranche Ⅱ. 查看答案
