Decide if the following sentences are debatable or non-debatable points. 1. In China, the examination score is regarded as important in making a decision. 2. In my opinion, it is not easy to achieve success. 3. To my mind, taxis have become an important transportation means. 4. I think cooperation is very important in our work. 5. I believe we should have more fast food restaurants in big cities. 6. Chinese doctors use acupuncture anesthesia to perform certain operations. 7. Acupuncture anesthesia should replace conventional anesthesia in all operations. 8. Lady Gaga is the most popular star of the 21th century. 9. Noise pollution is harmful to people's health. 10. Noise pollution is the most harmful of all environmental pollution.