用药频度分析的具体做法为
A.确定DDD值
B.求用药人次
C.求每日治疗费用
D.求购药金额序号和用药人次序号
E.求购药金额序号与用药人次序号的比值
参考答案:A,B,C,D,E
下列有关金属的说法中,正确的是( )
①纯铁不容易生锈②钠着火用水扑灭 ③铝在空气中耐腐蚀,所以铝是不活泼金属④缺钙会引起骨质疏松,缺铁会引起贫血⑤青铜、不锈钢、硬铝都是合金⑥ KSCN溶液可以检验Fe3+离子⑦ Al和Fe都能与某些氧化物反应
A.①②⑤⑥
B.②③④⑤
C.①③④⑤⑦
D.①④⑤⑥⑦
For an economy operating at full employment, if actual inflation is less than expected inflation, what will most likely be the effects on the unemployment rate in the short run and in the long run Short run Long run()①A. Increase Increase ②B. Decrease No effect ③C. Increase No effect
A. ①
B. ②
C. ③