A: ammonia dissociation in water reaches to equilibrium;
B: ideal gas expands in vacuum;
C: alcohol dissolves in water;
D: explosive.
举一反三
- Which of the following drinks are included alcohol? A: sherry B: gins C: mine water D: liqueur
- According to the distribution of oil, gas and water, the water at the edge of containing edge is called (). A: External water B: Bottom water C: Edge water D: Edge bottom water
- Which of the following equipment is not a traditional anti pollution equipment?_____ A: Ballast water treatment unit B: Exhaust gas boiler C: Oily water separator D: Incinerator
- The entire process is called the greenhouse effect, and most of it is caused by the prevalent greenhouse gas, water vapor. A: predominant B: executive C: superior D: remarkable
- Electricity, gas and water were considered to be natural ______.
内容
- 0
4-2。which is the best material for heat insulation？（ ） A: water B: cotton C: vacuum
- 1
Which of the following compressions in the soil under loading cannot be ignored（） A: soil particles B: interparticle pore C: sealing gas D: water in the soil
- 2
Which of the following is NOT part of the hydrologic cycle? A: water moving into creeks and streams following a rainstorm B: water infiltrating into the soil and bedrock C: calcium carbonate dissolving in soil water and groundwater D: water evaporating from a lake
- 3
Water treatment process for unpolluted surface water contains: influent, coagulation, ______ , ______ , disinfection, water supply network. (only one word for each blank)
- 4
Scientists figured out that human bodies are basically made of（） A: hydrogen, carbon, nitrogen, and oxygen atoms B: water vapor, ammonia, carbon dioxide, methane and hydrogen C: biomolecules and water D: evolutionary molecules