The following cultivation facilities with the best insulation is （）
A: Sunlight greenhouse
B: Plastic arch shed
C: Rain shelter
D: Pavilions greenhouses
A: Sunlight greenhouse
B: Plastic arch shed
C: Rain shelter
D: Pavilions greenhouses
举一反三
- Which<br/>of the following is NOT the consequence of air pollution () A: Earthquake B: Haze<br/>and smoke C: Acid<br/>rain D: Greenhouse<br/>effect
- Humans have to settle the problems with food, clothes and______before they can survive. A: cabin B: mansion C: shed D: shelter
- Which of the following is NOT the reason for the greenhouse effect A: Uncontrolled development. B: A warming atmosphere at a global level. C: Sunlight reaches the forest floor, dries plants and lights fires. D: No limits on logging and bad fire preventing efforts.
- Chinese bridges can be divided into 3 categories: the ________bridge, the________ bridge, and the _________ bridge Zhaozhou Bridge is the world's oldest open-spandrel stone segmental arch bridge. A: stone arch, zigzag, pavilion B: wooden, stone, wind and rain C: stone arch, wooden, wind and rain D: wooden, zigzag, pavilion
- 4-2。which is the best material for heat insulation？（ ） A: water B: cotton C: vacuum