XI. Read the following passage and choose the best answers each of the questions. Nylon was invented in the early 1930s by an American chemist, Julia
XI. Read the following passage and choose the best answers each of the questions. Nylon was invented in the early 1930s by an American chemist, Julian Hill. Other scientists worked with his invention and finally on 27 October 1938, Nylon was introduced to the world. It was cheap and strong and immediately became successful, especially … Đọc tiếp