Centuries later, in the years of the Tang, Song and Yuan dynasties, silk routes boomed both over land and at sea, facilitating trade between the East and the West. In the early 15th century, Zheng He, the famous Chinese navigator of the Ming Dynasty, made seven voyages to the Western Se...
Planet Earth is home to 7.3 billion people and over 1.5 million different species of animals, insects, and plants spread across 7 continents. Earth was not always comprised of seven continents. A billion years ago, the world would have been much different being made of much more water than w...
在短文的空格内填入适当的词,使其内容通顺。首字母已给出For centuries, people have asked what makes us different f
In Cuzco, the Inca people 44 walls with huge stones. Some of the walls were more than 7 meters 45 . Even today, centuries later, the stones fit together so well that you can’t even put a ruler between them. (...
So could it be that Earth really is unique? All living things on Earth are made of the same building blocks, long carbon-based molecules.所以地球真的是独一无二的吗？地球上所有的生物都有着相同的组成成分，即长碳基分子。Scientists now think that a large proportion of these molecules came from...
2. one of the oldest countries 最古老的国家之一 3. feel free to do sth. 随意地做某事 4. as far as I know 据我所知 5. man-made objects 人造物体 6. part of... ... 的组成部分 7. the highest mountain 最高...
All the dancers work together. There's a division of labor. People have different roles. And in order for the thing to come together, everyone needs to be aware of what others are doing and coordinate their work and have good timing. ...
A. What makes one person happy may be very different from what makes someone else happy. B. On the contrary, if you are around people who are happy, their emotional state will be influenced. C. Being overweight or not eating nutritious foods can have a negative effect on your mood. D....
For centuries,people have asked what makes us different from animals.We share almost 99 percent of our DNA with our closest relatives,chimpanzees,but have you ever (1)w onderedwhy they have never evolved [1] as fast as we have?The answer is our complex [2] brains.The earliest human ...
For centuries, people have asked what makes us different from animals. We share almost 99 percent of our DNA with our closest relatives, chimpanzees, but have you ever wondered why they have never evolved as fast as we have? The answer is our complex brain. The earliest human brains from ...