何情况下工作票可“双签发”？如何实行“双签发”？

I _______ in London for many years, but I’ve never regretted my final decision to move back to China.

A．lived

B．was living　

C．have lived

D．had lived

________about wild animals that they decided to make a trip to North Africa for further research.     [    ]

A. So curious the couple were                  

B. So cunous were the couple    

C. How curious the couple were                

D. How curious were the couple

A同一个总体参数的两个无偏估计量，有更小方差的估计量更有效。（）

病案加工是将资料中的重要内容转换为信息，一般是采用（）。

A.整理

B.索引形式

C.疾病编码

D.反馈

E.电子病案

2005年会计报表项目注释中披露的长期股权投资明细如下：（）