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The world's 10 most expensive stones
During the long years of the Earth's 4 to 4.6 billion years, it has not only nurtured countless lives, but also created a thousand wonders of the world. Gold, diamonds, precious stones, coal, oil, each is a gift from the earth. After billions of years of crustal movement, various types of stones have also evolved, some of which are valuable because of their scarcity and superior quality. -
The world's largest rodent pet: The water dolphin
When it comes to rodents, most people keep hamsters, bamboo rats and chinchillas. So, do you know what the world's largest rodent pet is? The world's largest rodent pet is the water dolphin, which is a semi-aquatic animal that mainly eats grass. The water dolphin looks like a pig, but its face resembles a mouse, and it is also very good in water. -
The world's most mysterious island: Easter Island stands thousands of giant stone statues
There are many islands in the world, and islands are formed for various reasons, including but not limited to: coral reef islands, artificial islands, plate separation, and other reasons. In the vast South Pacific Ocean, there exists a mysterious island that is isolated from the world. This island is called Easter Island, also known as the most mysterious island in the world, where thousands of giant statues stand. -
The most open country in the world
When you think of the Netherlands, the first thing that comes to mind should be the Dutch windmill. As one of the most developed countries in Europe, the Dutch social welfare is particularly good. Because of the proximity to the sea, the Dutch are very good at going out to sea to play. But why is the Netherlands the most open country in the world? The Netherlands is the most open country in the world! -
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The world's top 10 manufacturing developed small countries
We know that Japan, Germany are first-class manufacturing powerhouse, manufacturing scale "large and comprehensive", for these world powers, to meet these conditions is not difficult. Do you know which small countries have developed global manufacturing? -
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The world's 7 most recognized mathematical puzzles. Do many mathematicians
Math is a painful course for everyone at the student level, and every time you answer a question it's a torture, yet all we go through is the basic course. In the mathematics world there are seven mathematical problems that have defeated a large number of mathematicians, these can be the world's most difficult mathematical problems. -
The world's largest coal field in terms of storage capacity
Oil and coal are also important strategic resources in today's development. Even though people have found that the use of these resources has a relatively large harm to the human environment, but because of the delay in finding a new resource to replace them, people have adopted a mode of purification. Today we want to introduce the world's storage capacity of a relatively large amount of coal fields, its coal seams up to 1 km thick, the storage capacity of more than 300 billion tons of coal, take a look at where it is? -
The world's most contrary to common sense desert: every rainy season everywhere succulent plants
Desert in our impression, that is an absolute lack of water, so the desert is a yellow sand, and then almost no biological places, and even accompanied by the breath of death, because if lost in the desert kind, it is likely to usher in is death, so for the desert many people are holding a respectful attitude away. But the world is so big, there are always some deserts that are extraordinarily different. The world's most contrary to common sense desert, every August September, everywhere crazy succulent plants, come to understand it! -
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The world's ten rarest beasts
When it comes to fierce animals, you will think of which animals? Many people's first is definitely the lion, tiger and leopard and so on. Many species in the world are endangered and become very rare because of changes in natural conditions and human factors, so do you know which rare beasts in the world? -
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The world's 10 most profitable food companies
As we all know, there are many very large food companies around the world, which have launched many nutritious and delicious food, so do you know what are the world's famous food companies? What are the most profitable food companies?
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