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.

室内覆盖系统主要哪两部分组成。（）

A、直放站和无源天馈系统；

B、信号源和信号分布系统；

C、微蜂窝和有源分布方式；

D、宏蜂窝和泄漏电缆布放方式。