选项B说购买成本低于累计折扣+残值，为什么错了呢？
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2016012102000123问题如下Whiof the following statements is most likely correunr U.S. GAAP?A.asset is impairewhen the carrying amount of the firm asset is unable to fully recover.B.asset is impairewhen acquisition cost is smaller ththe sum of accumlatepreciation ansalvage value.C.asset is impairewhen the scountefuture cash flows from the asset is larger thits carrying value. A is correct.Unr U.S. GAAP, asset is impairewhen the carrying amount of the firm asset is unable to fully recover. The recoverability shoulcompareto the unscountefuture cash flows.考点资产减值 根据美国公认会计原则，当公司资产的账面价值无法完全收回时，资产就会发生减值。减值分为两步，第一步减值测试是用carrying value和unscountefuture cash flow比较，如果carrying value过大，则应该减值，那么就到了第二步要决定减多少，是用carrying value减去fair value或者PV of future cash flow。 请老师解答一下A，谢谢
NO.PZ2016012102000123 问题如下 Whiof the following statements is most likely correunr U.S. GAAP? A.asset is impairewhen the carrying amount of the firm asset is unable to fully recover. B.asset is impairewhen acquisition cost is smaller ththe sum of accumlatepreciation ansalvage value. C.asset is impairewhen the scountefuture cash flows from the asset is larger thits carrying value. A is correct.Unr U.S. GAAP, asset is impairewhen the carrying amount of the firm asset is unable to fully recover. The recoverability shoulcompareto the unscountefuture cash flows.考点资产减值 根据美国公认会计原则，当公司资产的账面价值无法完全收回时，资产就会发生减值。减值分为两步，第一步减值测试是用carrying value和unscountefuture cash flow比较，如果carrying value过大，则应该减值，那么就到了第二步要决定减多少，是用carrying value减去fair value或者PV of future cash flow。 如果连scountecashflow都比carry value大了，那unscountecsshflow不是比carry value大的更多了吗？所以本质上C是对的——这题出的就非常的不严谨！太没意思了
NO.PZ2016012102000123问题如下Whiof the following statements is most likely correunr U.S. GAAP?A.asset is impairewhen the carrying amount of the firm asset is unable to fully recover.B.asset is impairewhen acquisition cost is smaller ththe sum of accumlatepreciation ansalvage value.C.asset is impairewhen the scountefuture cash flows from the asset is larger thits carrying value. A is correct.Unr U.S. GAAP, asset is impairewhen the carrying amount of the firm asset is unable to fully recover. The recoverability shoulcompareto the unscountefuture cash flows.考点资产减值 根据美国公认会计原则，当公司资产的账面价值无法完全收回时，资产就会发生减值。减值分为两步，第一步减值测试是用carrying value和unscountefuture cash flow比较，如果carrying value过大，则应该减值，那么就到了第二步要决定减多少，是用carrying value减去fair value或者PV of future cash flow。 unscountefuture cf是未来的价值？不用折现？等于future cf？
NO.PZ2016012102000123 问题如下 Whiof the following statements is most likely correunr U.S. GAAP? A.asset is impairewhen the carrying amount of the firm asset is unable to fully recover. B.asset is impairewhen acquisition cost is smaller ththe sum of accumlatepreciation ansalvage value. C.asset is impairewhen the scountefuture cash flows from the asset is larger thits carrying value. A is correct.Unr U.S. GAAP, asset is impairewhen the carrying amount of the firm asset is unable to fully recover. The recoverability shoulcompareto the unscountefuture cash flows.考点资产减值 根据美国公认会计原则，当公司资产的账面价值无法完全收回时，资产就会发生减值。减值分为两步，第一步减值测试是用carrying value和unscountefuture cash flow比较，如果carrying value过大，则应该减值，那么就到了第二步要决定减多少，是用carrying value减去fair value或者PV of future cash flow。 美国准则不是不能recover吗
NO.PZ2016012102000123 问题如下 Whiof the following statements is most likely correunr U.S. GAAP? A.asset is impairewhen the carrying amount of the firm asset is unable to fully recover. B.asset is impairewhen acquisition cost is smaller ththe sum of accumlatepreciation ansalvage value. C.asset is impairewhen the scountefuture cash flows from the asset is larger thits carrying value. A is correct.Unr U.S. GAAP, asset is impairewhen the carrying amount of the firm asset is unable to fully recover. The recoverability shoulcompareto the unscountefuture cash flows.考点资产减值 根据美国公认会计原则，当公司资产的账面价值无法完全收回时，资产就会发生减值。减值分为两步，第一步减值测试是用carrying value和unscountefuture cash flow比较，如果carrying value过大，则应该减值，那么就到了第二步要决定减多少，是用carrying value减去fair value或者PV of future cash flow。 RT
