举一反三
- The thermal conductivity of ice at 0°C is approximately ______ times the thermal conductivity of water at the same temperature, indicating that in the same environment, ice can change its temperature faster than water.
- Fresh water ________ at a higher temperature than salt water. A: melts B: concentrates C: freezes D: resolves
- The freezing temperature of general food is higher than that of water.
- The temperature was much higher in the _________ than at night.
- 以下表述最为准确的是哪一个？ A: Development rate was fast in the high temperature treatment. B: Development rate was faster in the higher temperature treatment. C: Development rate was faster in the higher temperature treatment than in the lower temperature treatment. D: Development rate in the 30°C temperature treatment was ten percent faster than that in the 20°C temperature treatment.
内容
- 0
让该组件的温度下降直到它与环境温度一致 A: Let the temperature of the component increase until it is the same as the ambient temperature B: Let the temperature of the component decrease until it is the same as the ambient temperature C: Let the temperature of the componend decrease until it is the same as the ambient temperature
- 1
3. The three-phase point of water is a temperature and pressure condition under which water, ice and steam can coexist. The corresponding temperature is 0.01℃. Under this temperature, the external pressure of water is（ ） A: 101.325kPa B: 0.6106kPa C: 100kPa D: 1000kPa
- 2
My teacher told me that salt water _________ (freeze) at a lower temperature than fresh water.
- 3
Under the same conditions, fresh water evaporates faster than sea water.
- 4
When temperature is higher than melting point, ( ) affect(s) water activity. A: sample composition B: sample weight C: sample color D: temperature