The Great Wall, the Forbidden City and the Nanjing Yangtze River Bridge are places of interest in China

The great wall and the Forbidden City are places of interest in China. Historical sites are the key. Nanjing Yangtze River Bridge was built later. What are the historical sites

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1. The Great Wall, the Palace Museum and the Nanjing Yangtze River Bridge are historic sites for Chinese and foreign tourists
2. I visited the Great Wall, the Palace Museum, the terracotta warriors and horses of the first emperor of Qin Dynasty, the Nanjing Yangtze River Bridge and other places of interest?
3. A person's heart rate is 75 / min, 80 ml of blood is delivered per beat, and his blood pressure (which can be regarded as the average pressure of blood delivered by the heart) is 15000 PA ① The average power of this person's heart beating ② How high does this person's heart work in a day equal to lifting a one ton object? Our teacher said that this problem should be constantly publicized and deformed. If I change to power P = pressure PSV, I won't be able to do so. It's troublesome for experts to give advice,
4. Heart pumping process
5. The blood vessels that the heart "collects" blood back to the heart are. The "structure" that the heart pumps blood out is. The blood vessels that these two structures pump blood into are The blood vessels that the heart "collects" blood back to the heart are_ ,_ What is the structure of the heart that pumps blood out_ ,_ These two structures respectively pump blood into the blood vessels_ ,_
6. In the Mariana Trench in the Pacific Ocean with a depth of 1 × 10 m to the fourth power, scientists have found fish swimming. What is the pressure on these fish? P seawater = 1.03 × 10 to the third power, kg / m to the third power 10 kg per kilogram
7. To the 10th power of 0.25 to the 20th power of x2
8. 50 power of 0.25 × 10 power of 256 × 20 power of (- 2)
9. People's life is 80 years old, then the number of heart beats in a person's life is calculated, and the result is expressed by scientific counting method
10. Nanchong Xichong County 2008-2009 junior high school mathematics final test questions (including answers)
11. Xiao Wang invited his cousin to visit Beijing during the summer vacation. At that time, he visited the Great Wall, the summer palace, the Forbidden City and so on The content is that Xiao Wang invited his cousin to visit Beijing during the summer vacation. At that time, he visited the Great Wall, the summer palace and the Forbidden City Write as many letters as you can
12. The Palace Museum, summer palace and Yuanmingyuan
13. Composition about the Forbidden City in Beijing Similar to guide commentary urgent!
14. How to write a composition of 400 words in the Palace Museum of Beijing
15. The composition about visiting the Forbidden City is about 400 words Describe the appearance and main situation of the Forbidden City
16. Detailed introduction of each palace in Beijing Forbidden City Such as the title
17. Shenyang Palace Museum English Introduction
18. The summer palace covers an area of about 290 hectares, of which the water area is about three times that of the land area. How many hectares of land and water are there in the summer palace
19. The summer palace in Beijing covers an area of 290 hectares, of which the ratio of water surface area to land area is 3:1?
20. The Forbidden City in Beijing is the largest palace in the world. Its width is 750m, which is 7 / 32 of its length. How long is it