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I'm only a third-grade elementary school student, I can't write 600 words, I can only write more than 400 words, okay?
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There are no binoculars or photo albums.
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A bridge is an overhead man-made passageway. It is composed of two parts: the superstructure and the substructure. The superstructure includes the bridge body and deck; The substructure consists of piers, abutments, and foundations.
They hang high and lie low, with thousands of forms, some of them are male and far away from the mountains and mountains, simple and elegant; Some cross the rocky ravines and streams, and the mountains and rivers increase their brilliance; Some are located in the thoroughfare of the downtown area, with strange shapes; Some bridges are multi-purpose, ingenious. Regardless of the wind and rain, no matter the scorching heat and severe winter, they always cross the river for the majority of pedestrians, chariots and horses, and fly to cross.
The main purpose of building a bridge is to solve the traffic across the water or across the valley, so that the means of transportation or pedestrians can move smoothly on the bridge. In terms of its earliest or most important function, the bridge should refer specifically to the road that crosses the water. Therefore, the annotation of the text interpretation field jade cut is:
The beam zigzag, with wood across the water, the bridge of today also. It is explained that the original meaning of the bridge refers to the passage of wood on the water surface, and there are later forms of flyovers such as "plank road" erected on cliffs and cliffs, and "flying pavilions" erected between pavilions and palaces.
China is a large country with many mountains and rivers, and in ancient times, both the bridge construction technology and the number of bridges were in the leading position in the world. For thousands of years, bridges have become an indispensable part of people's social life. However, due to China's vast territory, from south to north and from east to west, there are great differences in geography, climate, cultural customs, and the level of development of social productive forces.
Therefore, based on their own actual conditions and according to their own needs, after a long period of time, they have created a variety of bridge forms, and gradually formed their own characteristics, specifically speaking, they have the following characteristics: regionality; Diversity of variety; Versatility; Public welfare.
According to the main material.
Wood, stone, brick, bamboo, rattan, iron, salt, ice, paper bridge.
According to the structure and appearance.
There are four basic types of girder bridges, pontoon bridges, rope bridges, and arch bridges.
The natural beauty of the mountains and rivers has always been fond of Chinese writers and artists. As Dong Changqi, a great artist of the Ming Dynasty, said, "Poetry takes mountains and rivers as the environment, and mountains and rivers are also poetry as the environment." "The bridge is a building erected between mountains and rivers, which has been standing in nature for a long time, and has become a member of the embellishment and beautification of nature.
There are mountains and rivers, and there will naturally be bridges, and the bridge itself is also a fusion of practicality and art, such as the straightness of the bridge, the volley of the rope bridge, the charm of the pontoon bridge, and the shadow of the arch bridge, etc., which originally swayed the style of art. Therefore, Mr. Joseph Needham of England said: "There is no Chinese bridge that is not beautiful, and many of them are the most beautiful."
The artistry of bridges in China is mainly manifested in two aspects, namely modeling style and decoration technology. The styling style is mainly reflected in the soft curves, rhythmic harmony and majestic magnificence. And some of the small beams and thin bridges in the water towns in the south of the Yangtze River are more reminiscent of the poetry and painting of "small bridges, flowing water, and people".
The crystallization of bridge art and practicality!
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one day a girl was riding her bike to the park at 11 o' put her bike near the saw two boys swinming in the sea . at11;15,while she was sitting a thief took her bike awaya moment later .she found her bike was lost,then shie called the police.
I think you can skip the respect to add points. Pure hand beating, tired to death, your essay is in the second year of junior high English, right? I was filial piety and was cautious in typing the teacher's standard search state quasi-answer. Hope. 〃
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Let the old general on the isolated island see the unity of Taiwan.
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Because he wanted to give the general of the isolated island a memorial.
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The umbrella was invented in 1000 BC by Lu Ban's wife in China.
The abacus was invented by a Chinese merchant in 600 BC.
The telescope was invented in the early 17th century by a merchant from Xunzhou, Ouqizhou.
The camera was invented in the 19th century by Daguerre, France.
The bicycle was invented in 1861 by the French father and son.
maybe
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In the sixth century, the Chinese invented the abacus. About 4,000 years ago, the Egyptians, Chinese and Europeans invented the umbrella. Italian Ignatio Porro invented binoculars in 1854.
The man who took the first ** in 1827, Joseph Nicephore Niepce, invented the camera. In the 80s of the 19th century, the British invented and old bicycles.
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Your English book is the same as mine, and this essay is so difficult to write, hey. Read your own books.
In the blink of an eye, the seasons change between warm and cold. My heart is still tossing and turning in the middle of summer night, and it is already the cold of early autumn in front of me. Reaching out to touch the thoughts of a falling flower flying, the vicissitudes and regrets of the poet's half a lifetime linger in my ears: if life is only as first seen, what is the autumn wind and sad fan.
Easily irritated.
Mostly weakling. >>>More
Good rain knows the season, when spring happens.
The golden wheat grains evolved into the scent of rice, and the memory was full of the smell of sunshine. The rice aroma is puffy, and the shallow and evocative taste. The gentle breeze and the smell of rice blown by the wind are the memories of youth. At the end of the rice fragrance, but the back of the old time is gone.
In the troubled times, there are many talents, but there are only two people in the chess game on the top of the vast mountain, and only one is the supreme who controls the world.