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пособие по англ

10. Ответьте на следующие вопросы:

1. What is petroleum?

2. How is petroleum recovered?

3. Is petroleum used in manufacturing a wide variety of materials?

4. What does petroleum include?

5. What are the hydrocarbons in crude oil?

6. Crude oil varies greatly in appearance depending on its composition, does not it?

7. Where is crude oil usually found?

8. Where is petroleum used as the raw material?