题目内容

下面的代码能实现交换两个变量的值吗?如果不能实现请改写代码实现,并写出运算结果。

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设方阵A的一个特征值为2,则矩阵2A+3E的一个特征值为__

Jakob Co. purchased an asset for $100,000 on 1.1.20X1. It had an estimated useful life of 5 years and it was depreciated using the reducing balance method at a rate of 40%. On 1.1.20X3 it was decided to change the method to straight line.Show the depreciation charge for each year (to 31 December) of the asset’s life.

Question:1. What is the purpose of depreciation2. In what circumstances is the reducing balance method more appropriate than the straight line method? Gives reasons for your answer

GIS的功能包括()

A. 信息获取与输入
B. 数据存储与管理
C. 数据查询与分析
D. 成果表达与输出

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