您好，有两个问题哈，1.求average age这个公式是不是只能在直线折旧法下使用呢？ 2.求average depreciable life这个公式，只考虑gross cost也就是历史成本就可以嘛，不需要考虑残值吗？

21 A country with a persistent trade surplus is being pressured to let its currencyappreciate. Which of the following best describes the adjustment that mustoccur if currency appreciation is to be effective in reducing the trade surplusA Domestic investment must decline relative to saving.B Foreigners must increase investment relative to saving.C Global capital flows must shift toward the domestic market这一题能解释一下吗？

19 A country with a trade deficit willmost likely:A have an offsetting capital account surplusB save enough to fund its investment spending.C buy assets from foreigners to fund the imbalance.经常账户赤字为什么一定对应资本账户盈余？不是还有一个fiancial account吗？

3 In order to minimize the foreign exchange exposure on a euro-denominatedreceivable due from a German company in 100 days, a British company wouldmost likely initiate a:A spot transaction.B forward contract.C real exchange rate contract.3 B is correct. The receivable is due in 100 days. To reduce the risk of currencyexposure, the British company would initiate a forward contract to sell euros/buy pounds at an exchange rate agreed to today. The agreedupon rate is calledthe forward exchange rate.这一题是做了hedge吗？是英国公司100天后要收到欧元，所以现在卖出欧元的forword买入英镑的forward吗？他是签了2个forward吗？

19 Which of the following chronic deficit conditions is least alarming to the deficitcountry’s creditors?A High consumption.B High private investment.C High government spending.这题背景是什么？是如果一个国家经常账户出现逆差，债权人会觉得该国家偿债能力受影响吗？然后选项投资增加导致的逆差不会alarming 债权人是因为投资会增加收益是吗？

12 A large country can:A benefit by imposing a tariffB benefit with an export subsidyC not benefit from any trade restriction为什么选A

老师没有听懂为什么政府会陷入两难境地？

老师，这里的S0指的是标的资产的spot price(当前价格)吧？

structural unemployment 和 cyclical unemployment 不在考纲了么？

我理解这个题应该是算到D3再折回2年末，他这个看不懂！和我们百题算法的不一样