Which of the following inventory accountin
题型：单项选择题
问题：
Which of the following inventory accounting methods must be used for financial reporting purposes if a U. S. firm uses last in, first out (LIFO) for tax purposes
A．
| A. FIFO. |
B．
| B. Average cost. |
C．
| C. LIFO. |
为
的小球，已知绳能承受的最大拉力为10 N。小球在水平面内做圆周运动，当速度逐渐增大到绳断裂后，小球以
的速度落在墙边。求这个圆柱形房屋的高度
和半径
。（g取10 m/s2）