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The destructive power of flood and waterlogging is great. How to prevent flood disaster in ancient cities of our country.
Flood disaster caused by torrential rain is a common natural disaster. -
There is only one throne, and there is more than one person who wants to take the throne. How did the ancient emperors prevent Wang Ye from rebelling?
Throughout Chinese history, there are not a few people like Zhu Di who seek the throne and rebel. -
What are the arms of the Army Women's Corps that appeared in the United States in World War II, and what is their role and influence?
American women have high intellectuals at the top and ordinary peasant women at the bottom. -
In the Russo-Japanese War, why did Japan have to attack Lushun regardless of casualties instead of besieging it?
A Lvshunkou, half a step in modern Chinese history -
When Jin learned that Yue Fei was dead, why didn't he take the opportunity to go south and perish the Southern Song Dynasty?
Yue Fei was unjustly killed in 1142. In theory, Jin Jun got rid of serious troubles. -
Why did the Song Dynasty set up military departments, Privy Council, Sanya and other military institutions? who has the final say?
Since ancient times, the army has been the pillar and life gate of the feudal dynasty. -
How did the Soviet Union establish eight red countries in Eastern Europe from the end of World War II to the beginning of the Cold War?
With their great contributions to the anti-fascist war, the Soviet Union and the United States became the "poles" of the world after World War II. -
Is mutton really the most popular in the Song Dynasty? then why do the heroes of the Outlaws of the Marsh only like to eat beef?
The "three giants" of cattle, sheep and pork occupy the mainstream market of meat consumption. -
Why did France, occupied by the Germans in World War II, become one of the five permanent members of the United Nations after the war?
All the five permanent members have a veto over international events. -
In the Tang Dynasty, someone measured the meridian. Why did no one calculate the circumference of the earth in the Ming Dynasty?
It was not until 724 that the Tang monk and his party first measured the meridian.