问题如下：
The inventory of company M experienced a write-down in 2013, but the write-down was then reversed in 2014. Compared with the condition that the write-down never happened, which of the following is not true about company M's 2014 financial report? ?
选项：
A.Cash flow from operations was higher.
B.2014's ending inventory balance was unchanged.
C.Profit was overestimated.
解释：
A is correct. The write-down indicates that the value of inventory decreased and the cost of sales increased, the reversal of the write-down indicates that the cost of sales decreased, so in 2014 the profits were overestimated. Because the write-down and reversal of the write-down offset each other, 2014' s ending inventory balance remained unchanged. Although the write-down and reversal of inventory did not influence the cash flow from operations, overestimated profits in 2014 tended to produce higher taxes, which led to lower cash flow from operations.
老师， 2013年的write down后，COGS上升导致profit下降，之后2014年回转后，COGS下降导致profit上升，请问他们不是相互抵消了profit的上升和下降吗？也就是和没有发生时候的COGS和PROFIT一致吗？为什么2014年的profit相比没有发生的情况还是高呢？
