9) It (inevitably) will increase the emission of carbon dioxide and so hasten the buildup of greenhouse gases in the atmosphere.
A: unavoidably
B: certainly
C: accidentally
A: unavoidably
B: certainly
C: accidentally
举一反三
- 6). Human ingenuity and know-how will (inevitably) come to the rescue. A: unavoidably B: certainly C: accidentally
- the gases which are responsible for causing the greenhouse effect, e.g. carbon dioxide
- 中国大学MOOC: However, this kind of energy will (7) ________ plenty of greenhouse gases, such as carbon dioxide, methane, (8) ________ vapor and so on.
- Greenhouse gases include . A: carbon dioxide B: CFCs C: methane D: nitrous oxide
- "Greenhouse gases" in Para. 2 refer to ________________. A: oxygen B: hydrogen C: carbon dioxide D: air