________himself with many optimistic people,the old man led a happy life.[ ]

A. Surrounded  

B. Surrounding

C. To surround  

D. Having been surrounded

目前数据综合应用平台上，税收管理员可以应用的模块是（）。

A、一局式查询

B、一户式查询

C、分析监控

D、报表订阅