A long-term ____________ between these natural sources and sinks leads to the background, or natural, level of CO₂ in the atmosphere.
balance
举一反三
- Burning coal, oil and natural gas are ways to reduce carbon dioxide in the atmosphere.
- Which term is used to distinguish between types of the same food A: Refined foods. B: Natural foods. C: Organic foods. D: Unprocessed foods.
- The term Dutch Disease was coined in ( ) to explain a sharp decline in the Dutch economy following their discovery of ( )in 1959. A: 1966, natural petroleum reserves B: 1966, natural gas reserves C: 1977, natural petroleum reserves D: 1977, natural gas reserves
- This river forms a natural _______ between China and Korea.
- The main purpose of this article is to ______. A: show the difference between processed foods and natural ones B: explain how natural foods may be better for us C: compare the difference between processed foods and natural ones D: point out the problems with modern farming
内容
- 0
The basic principle of the Natural Approach is the distinction between language______ and language learning.
- 1
The area’s rich natural resources have long __________ the Russian economy.
- 2
The natural atmosphere that we breathe contains not only gaseous constituents but also large numbers of liquid and solid particles.
- 3
Chinese calligraphy, as a traditional oriental art, is not aimed at exciting people but _________ between the lines. A: stimulating people’s interests B: attracting people’s attention C: appreciating natural beauty D: creating atmosphere of peace and harmony
- 4
Plant assets are: A: Current assets. B: Used in operations. C: Natural resources. D: Long-term investments. E: Intangible.