An unusual bridgeThere are many types of bridges around the world with differentpurposes. Some bridges are built so that cars can cross over rivers. Othersare made for trains to use. In the state of Washington, there is a very unusualbridge - it was built for squirrels.There is a very ...
Explore the different types of bridges. Understand the history of bridges, analyze the chief forms of bridges, and find examples of popular bridge...
Today bridges over rivers move to let ships pass by safely. There are many different types of bridges that move. 今天,河流上的桥梁移动,让船只安全通过。 有许多不同类型的桥梁可以移动。 Some bridges tilt up to open on one side. Some bridges have two pieces tilt up to open in the middle. ...
Types of Bridges by Mobility FIXED BRIDGES Fixed bridges are pretty simple: They’re anchored in place and meant to provide a steady, secure passage across a river, canyon, rail line, roadway, or other obstacles. Many of the bridge styles described above are in this category. I-beam girders...
根据第四段“The three main types of bridges are arch, beam and suspension.”可知,桥梁的三种主要类型是拱、梁和悬索,故填3/three;arch, beam and suspension。 (4)题详解: 根据第五段“Arch bridges were invented a long time ago by the Romans. They were built out of stone or brick”及“Sus...
s from one side ofthe street to the other.根据文章内容及首字母提示,将单词完整地填在下面横线上。1.23.4.5.6. 相关知识点: 试题来源: 解析 1. world 2. can 3. is 4. busy5. for 6. safely 结果一 题目 An Unusual BridgeThere are many types of bridges around the 1. wwithdifferent ...
Bridge TypesTypes of Bridges Over the last several thousand years, bridges have played a critical role in developing our earliest civilizations, spreading knowledge, local and worldwide trade, and the rise of transportation. Initially made of simple materials and designs, bridges evolved and enabled ...
There are many types of bridges around the 1. W_with different purposes. Some bridges are built so that cars 2.C_cross over rivers. Others are built for trains to use. In the state of Washington, there 3. I_ a very unusual bridge-it was built for squirrels. There is a very 4. ...
【题目】There are many types of bridges around the world with differentpurposes. Some bridges are built so that cars can cross over rivers. Othersare made for trains to use. In the state of Washington, there is a very unusualbridge- it was builtfor squirrels.Thereis a very busy stretin ...
Bridges must be strong enough to support not only their own weight,but also the weight of the people and vehicles(交通工具).They must last a long time and be built in a way that protects them from earthquakes ,strong winds,and freezing. The three main types of bridges are arch,beam and...