确定设备经济寿命的方法有()。
A.经济寿命的静态计算法
B.经济寿命的动态计算法
C.经济寿命的盈利指标计算法
D.财务评价计算法
E.经济寿命的预算计算法
参考答案:A, B
A toddler with croup is given a vaponefrin updraft because of increasing respiratory distress. The nurse evaluates the treatment as being effective when see which of the following
A.The child's color is normal.
B.The child's retractions are less severe.
C.The child's heart rate is 100 bpm.
D.The child's pulse oximeter reads 90.
端坐位适用于()时的病人。