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World's longest river ranking
Do you know which is the longest river in the world? -
The world's most toothed animals ranking: Snails take the crown, sharks only second
There are thousands of animals in the world, and there are countless varieties and species, each with its own characteristics and habits, so do you know what are the animals with the most teeth in the world? -
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World's top 10 core technologies ranking
Technology is vital for every country. In today's world, every country pays great attention to the development of science and technology industry, and only technology can bring progress. So do you know what are the top 10 core technologies in the world? -
Ranking of the world's five nuclear powers
Nuclear weapons are the most powerful kind of weapons nowadays, and many countries are secretly researching continuously in the hope of developing nuclear weapons. Do you know which countries are the five nuclear powers? Only countries that are officially recognized by the Treaty on the Non-Proliferation of Nuclear Weapons as possessing nuclear weapons are legitimate nuclear weapon possessors, and there are only five countries in the world - the United States, Russia, China, France, and the United Kingdom - that are also known as the five nuclear powers. -
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The world's top ten highly intelligent animals ranking
It is well known that we humans have the ability to learn, think and solve problems, be creative, and think abstractly, all of which are evidence that we humans are very intelligent. Then, besides humans, what do you know about the animals in the world with high IQ? -
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Ranking of the world's top 10 most fragrant plants
When it comes to scented plants, most of us will think of a variety of flowers, in fact, these fragrant plants are called aromatic plants, and flowers are only one of the categories, there are also herb plants, fragrant tree plants and so on, so what do you think the most fragrant plants? -
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The world's largest whales ranked in the top ten
Whales are one of the world's most beautiful, largest, and most endangered species. They are extremely intelligent and possess complex emotions. To adapt to the underwater environment, the forelimbs evolved into flippers and the hindlimbs degenerated and gave birth to horizontal caudal fins. So do you know which are the largest whales in the world? -
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Top ten ranking of world trains
Trains are now one of the very convenient means of transportation for people to travel. In order to provide passengers with a comfortable environment, many companies have introduced luxury trains to allow passengers to fully enjoy their trips and travel. Now the faster trains are slowly starting to be known by people -
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2022 World Top 10 Destroyers Ranking
Destroyer is a kind of medium-sized surface ship that can be equipped with air-to-air, sea-to-sea, submarine and land attack weapons and has a strong integrated combat capability. It has been about 120 years since its birth in the 1890s and is one of the important ship types of the Navy. -
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World Road Tunnel Top 10 Ranking
Nowadays, highways are so well connected that they often go through many tunnels. So do you know what are the world's longest road tunnels?