The plants make unwelcoming smells to _____ (击退) their enemies.
repel
举一反三
- （ ） is taken in by plants to make food.
- （ ） is taken in by plants to make food.
- 中国大学MOOC: _____ about wild plants that they decided to make a trip to Madagascar for further research._____ about wild plants that they decided to make a trip to Madagascar for further research.
- _________ about wild plants that they decided to make a trip to Madagascar for further research.
- Which is NOT the effect of Air Pollution? A: Cause people to get sick B: Kill animals and plants C: Give off bad smells D: Produce acid rain
内容
- 0
They<br/>kept ______ (grow) trees and many other plants to make the mountains<br/>green.
- 1
( ) is taken in by plants to make food. A: nitrogen B: hydrogen C: oxygen D: carbon dioxide
- 2
When climate conditions change to a certain value, plants would not make quantitative changes to qualitative ones.（ ）
- 3
_____ about wild plants that they decided to make a trip to Madagascar for further research._____ about wild plants that they decided to make a trip to Madagascar for further research. A: So curious the couple was B: So curious were the couple C: How curious the couple were D: The couple were such curious
- 4
All _______, including the human being, make the world lively. A: plants B: insects C: crops D: creatures