(三) 假定有A、B两个项目,其净现金流量情况见下表:
项目B的投资回收期的整数年份是()。
A.1
B.2
C.3
D.4
参考答案:B
---Where did you get the dictionary?
--- From the library. And I have ______ it for two weeks.
A.borrowed
B.lent
C.kept
D.bought
患者,男性,48岁,慢性呼吸衰竭。血气分析PaO50mmHg,PaCO70mmHg,为患者吸氧,宜选择的浓度为()。
A.18%~24%
B.25%~29%
C.30%~36%
D.36%~42%
E.46%~53%