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Why does the Leaning Tower of Pisa in Italy lean? It leans because of a mistake. It has leaned almost since the day the builders b 1 it.
In 1774, the people of Pisa in Italy wanted to build a bell tower. They wanted the tower to be the m 2 beautiful bell tower in Italy. The city needed a bell tower because the church(教堂) did not have o 3 . As soon as the first floor of the building was finished, the tower started to lean. Builders t 4 to make the building straight again as they added more floors, but the leaning tower got w 5 as the tower grew. It took about 180 years to finish the tower. Today, the leaning tower has eight f 6 It is 54.5 meters t 7 . And it leans almost 4 meters to one s 8 . The tower is also sinking(下沉) into the g 9 on which it was built. Every year, the tower leans a 10 1.7 cm. 查看习题详情和答案>>
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Why does the Leaning Tower of Pisa in Italy lean? It leans because of a mistake. It has leaned almost since the day the builders b 1 it.
In 1774, the people of Pisa in Italy wanted to build a bell tower. They wanted the tower to be the m 2 beautiful bell tower in Italy. The city needed a bell tower because the church(教堂) did not have o 3 . As soon as the first floor of the building was finished, the tower started to lean. Builders t 4 to make the building straight again as they added more floors, but the leaning tower got w 5 as the tower grew. It took about 180 years to finish the tower. Today, the leaning tower has eight f 6 It is 54.5 meters t 7 . And it leans almost 4 meters to one s 8 . The tower is also sinking(下沉) into the g 9 on which it was built. Every year, the tower leans a 10 1.7 cm.
Why does the Leaning Tower of Pisa in Italy lean? It leans because of a mistake. It has leaned almost since the day the builders b 1 it.
In 1774, the people of Pisa in Italy wanted to build a bell tower. They wanted the tower to be the m 2 beautiful bell tower in Italy. The city needed a bell tower because the church(教堂) did not have o 3 . As soon as the first floor of the building was finished, the tower started to lean. Builders t 4 to make the building straight again as they added more floors, but the leaning tower got w 5 as the tower grew. It took about 180 years to finish the tower. Today, the leaning tower has eight f 6 It is 54.5 meters t 7 . And it leans almost 4 meters to one s 8 . The tower is also sinking(下沉) into the g 9 on which it was built. Every year, the tower leans a 10 1.7 cm.
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Firefighters or firemen play an important role in our daily life．In some places, firefighters use watchtowers to look for smoke and fires, although they get a fire report by telephone．A high tower is still very u 1 for watching and guarding a place．Fire fighters also make it a place for practice．They learn how to p 2 out fires from burning buildings．They try to c 3 up the outside of the tower as fast as possible．They carry water hoses up to the fire．They practise carrying imaginable victims down f 4 high ladders．
There are reasons that firefighters are called for help．Maybe a building or a forest is o 5 fire．A train accident happens and people are t 6 inside．Still, people need to be rescued from floods or an earthquake．Whenever there is an emergency situation, they can be seen f 7 there．
Being a fire fighter needs a lot of t 8 ．In the first place, firefighters should know how to educate the community(社区)by visiting schools, community centres and people in their own homes to p 9 fire and accidents from starting．They have to learn how to deal with different dangerous situations．Above all, it's necessary for firefighters to exercise every day to be h 10 and strong．