文档介绍：大学英语往年六级真题
高校英语往年六级真题：2018年12月英语六级听力
Recording 1
Here is my baby niece Sarah. Her Mon is a doctor and her daefore. The fundamental limitations of machine learning is that it needs to learn from large volumes of past data. But humans don't. We have the ability to connect seemingly different threads to solve problems we've never seen before.
Question 16: What did the researchers at Oxford University conclude?
Question 17: What do we learn about Kaggle company’s winning programs?
Question 18: What is the fundamental limitation of machine learning?
Recording 2
We’ve talked recently about the importance of sustainable energy. We've also talked about the different theories on how that can be done. So far, our discussions have all been theoretical. Now I have a practical question for you all. Can you run a one hundred and forty thousand kilogram train on just the steam generated by solar power? Well, one engineer, Tim councilman believes it's possible.
And his home city of Sacramento, California should see the technologies first test as part of the upgrading of its rail yard. Councilman, who is an inventor and self-proclaimed steam visionary, is campaigning for a new steam train that runs without any fire and could run on an existing ten kilometer line, drawing tourists and perhaps offering city commuters a green altern