consistent get,db block get

What is Oracle consistent gets?

http://www.eygle.com/digest/2009/03/what_is_oracle_consistent_gets.html

consistent get,db block get ：

(from blog of h11h99)

http://h11h99.blog.51cto.com/230273/42860/

consistent gets 与consistent read 是多对一的关系吗？

http://www.itpub.net/viewthread.php?tid=1265708

关于consistent read 的几个问题:

http://www.cnoug.org/viewthread.php?tid=69767

http://www.cnoug.org/archiver/?tid-69767.html