问题如下：
Scenery manufacturer is a CHINA-based company, Scenery has a subsidiary, XZZ, operates in US, XZZ was acquired in 2018 and has never paid a dividend. It records inventory using the FIFO method. RMB is expecting depreciation in the future.
Flexi, CFA, he gathers XZZ’s financial statements and the RMB/US dollar exchange rates in the following table:
If XZZ using the current rate method to translate financial statement into RMB, in 2018,Scenery’s consolidated financial statement will most likely include XZZ’s:
选项：
A. RMB4,407 Inventory
B. RMB1621.9 long-term debt
C. RMB47,190 million in revenues
解释：
C is correct.
考点：current rate method
解析：
A：在current rate method下，inventory用current rate转换，即650*7=4550
B: 无论在哪种方法下，long-term debt都使用current rate转换，即245*7=1715
C: 在current rate method, I/S上的项目全部用average rate 来转换 ， 所以revenue = 6,790*6.95=47,190。
问下inventory为什么用2018.12.31的汇率7转换？