Data Technology has amark,the years no trace

In the history of china about 5000 years,there is large number of changes things.Use the insight to lood at

the history as if to see the reciprocating world,refulgence can be written again.transmission, is a sort of duty.Classic has has the same behavior with time ,grade has the same bhavior with time and pattem has the same behavior with time

the noble quality is showed finely