常用的偏差分析方法中( )的优点是简单直观，便于了解项目的投资概貌，但这种方法信息

为庆祝新中国成立60周年， * * 城楼高高挂起8盏大红宫灯，每盏大红宫灯是全部大红宫灯的（    ）。

下列与肺心病不符的X线征象是

A．肺气肿

B．右心室增大

C．左心室明显增大

D．右前斜位见肺动脉圆锥突出

E．右下肺动脉直径＞15mm

You____ buy a  gift, but you can if you want to.   [ ]

A. must    

B. mustn't    

C. have to    

D. don't have to

分离定理要求企业管理层在决策时应考虑每位股东对风险的态度。( )

— The head teacher said we had only three days to finish the project.

— Don't worry. We have already ________ two thirds of it. [ ]

A. taken over  

B. got through

C. made up  

D. given away