Answer:
Roman Engineering
The ancient Romans were skilled engineers and have left lasting contributions in this field. The Romans built a great network of roads connecting cities throughout their empire. They also built aqueducts and bridges using arches for support. The Roman arch design was by far the most important innovation of their time. The arch, however, would have been useless without the discovery of concrete. The Romans had many other such discoveries that would make their engineering skills known throughout the world. The Romans discovered many things that would aid the construction of their great civilization. The Romans discovered that a particular mixture of volcanic rock rubble and water could be used to create very strong…show more content…
These roads were so well built that some of them are still in use by modern travelers. Romans knew that the shortest distance between two points is a straight line and built their roads incredibly straight, stretching for miles without a single turn. The use of stone in building roads enabled people to travel during inclement weather while dirt roads may remain too muddy to travel upon for many days after a hard rain. The Ancient Romans also knew of a road building technique that escapes the builders of modern roads in states such as Florida. This technique is known as crowning, this involves making the center of the roads higher than the sides, with a gradual slope to allow water to run off the sides instead of collecting in the middle. By the time the great Roman Empire fell, the Roman Army had built roads connecting all of their empire to Rome. One of Roman Engineering’s greatest accomplishments was the use of the arch. The arch shape is very strong, able to support great amounts of weight. This allowed Romans to build massive structures that would stand for many centuries. The Romans adapted the arch design to fit many purposes. The barrel vault is merely an elongated arch; this was used for buildings tombs and sewers.
Explanation:
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
President Lyndon Johnson began his career as a teacher at a small school in Cotulla (near San Antonio). At the school, he worked with young Mexican American students from struggling families. This experience influenced his ideas in many ways.
For instance, this early experience in his career helped him to be sensitive to the necessities of other people, particularly of minority groups such as African Americans and Hispanic people.
This experience made him strongly support education in the United States. When became the United States President after the assassination of Jonh F. Kennedy, Johnson signed the Elementary and Secondary Education Act of April 1965.
Another important consequence of that above-mentioned experience as a teacher in San Antonio was that he understood the condition of minority groups and supported the signing of the Civil Rights Act of 1964.
Answer:
C looks like the closest correct answer.
I think the answer is C
掌握巴拿馬運河控制權
Master control of the Panama Canal
C) The NAACP (National Association for the Advancement of Colored People) was the organization compatible with the thinking of DuBois and not with Washington.
Credits: <span>WorldlyGlass49 and Hegans</span>
