Khóa học phần nghe toefl itp 20 câu sau theo bài Hướng dẫn và trắc nghiệm nghe toefl itp thuộc 20 câu sau – Mã 97013438 29 Th9 Press to start in video What is the main topic of the discussion? Using solar energy for heat. The benefits of new reflectors. Identifying different varieties of quartz. A particular kind of heating device. What had the instructor probably been discussing in the previous class? Quartz heater. Infrared heat. Convection. Sympathetic vibration. What does the instructor ask the student? He asks her how a quartz heater works. He asks her to give a definition. He asks her to explain his design. He asks her for an example. According to the instructor, how was the quartz heater different from other types of heaters? It heats only the objects in a room. It is lighter in weigh. It is more common. It is more expensive. What is the purpose of a reflector on a quartz heater? It directs radiation at objects. It moves air around the room. It measures the temperature of a room. It collects sunlight. Loading … Đọc thêm Hướng dẫn và trắc nghiệm nghe toefl itp thuộc 20 câu sau - Mã 99104850[related_posts_by_tax title=""]
