Đọc đoạn văn sau và trả lời các câu hỏi: Science as we know it today can be said to have started with the ancient Greeks, with the likes of Herodotus, Aristotle and Theophrastus, all of whom lived from 300 to 500 years before Christ. 5 Their findings were still valid two millenniums later, when [...]

Đọc đoạn văn sau và trả lời các câu hỏi: What biologists refer to as succession usually begins as a result of natural destruction, such as by fire or flood. It can also be caused directly by man; he is responsible for the destruction of a lot of the world’s nature.. Succession, sometimes called secondary [...]