需长期静脉给药者，为保护静脉，应有秩序地先下后上、由远端至近端地选择血管进行注射。
参考答案：对
The year-end financial statements for a firm using last in first out (LIFO) acounting show an inventory level of $5000, cost of goods sold (COGS) of $16000, and inventory purchases of $14500. If the LIFO reserve is $ 4000 at year-end and was $1500 at the beginning of the year, what would the COGS have been using FIFO accounting
A．
B．
C．
一国单方面避免重复征税的方法有（）。
A、国家间的税收协定
B、扣除法
C、免税法
D、抵免法
