公司分配股息的基础和最高限额为()
A.税后净利
B.税前利润
C.普通股股息
D.公积金和公益金
参考答案:A
____four years since I joined the army.
A.There was
B.There is
C.It was
D.It is
引起肺动脉高压的原因有()
A.肺组织结构破坏,毛细血管床减少
B.肺血管狭窄或闭塞
C.胸内压升高,压迫肺毛细血管
D.肺血管收缩
E.循环血量减少