在力学中，把“力的大小、（）和作用点”称为力的三要素。
A、效果
B、状态
C、方向
D、强弱
参考答案：C
数轴上与表示-1的点的距离等于两个单位长度的点所表示的数是（ ）。
Which of the following statements about the LIFO and FIFO inventory accounting methods is least accurate （）
A. For purposes of inventory analysis, FIFO is preferred over LIFO.
B. FIFO cost of goods sold--LIFO cost of goods sold-change in LIFO reserve.
C. In periods of declining prices, LIFO debt-to-equity ratios are higher than FIFO debt-to-equity ratios.
