Khóa học phần nghe toefl itp 20 câu sau theo bài Hướng dẫn và trắc nghiệm nghe toefl itp thuộc 20 câu sau – Mã 99013134 14 Th10 Press to start in video 31. What is the conversation mainly about? A standard unit for measuring weight. Using the metric system. How to care for precious metals. The value of precious metals. 32. How was the weight used? To calculate the density of other metals. To check the accuracy of scales. To measure amounts of rainfall. To observe changes in the atmosphere. 33. Why was it necessary to replace the old standard weight? The standard for measuring had changed. Someone spilled water on it. Someone lost it. It was made of low quality metal. 34. What does Dr. Thomas probably think about the cost of the new weight? It is too high for such a light weight It is reasonable for an object with such an important function. It is difficult to judge the value of such an object. It is a small amount to pay for so much precious metal. Loading … Đọc thêm Luyện đề phần nghe toefl itp thuộc 20 câu sau - Mã 98053142[related_posts_by_tax title=""]