Farmer burden is average and annual addition rate, deciding feudal dynasty to be able to be maintained those who unite is the longest, this time can push numerate.

 
  • 農民負擔平均每年增加的比率,決定著(zhù)封建王朝能夠維持統一的最長(cháng)時(shí)間,這個(gè)時(shí)間可以推算出來(lái)。
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