The water used in the ship's sanitation system is generally _____.
A: low temperature fresh water
B: high temperature fresh water
C: water produced by water generator
D: seawater
A: low temperature fresh water
B: high temperature fresh water
C: water produced by water generator
D: seawater
举一反三
- The first step of starting a cold ship is . A: Start emergency generator B: Starting cooling water system C: Start the compressed air system D: Start the daily fresh water system
- The fresh water produces fresh water _______.
- The fire water system in residential buildings and shopping malls is similar to that on ships, but the difference is that the fire-fighting water on land is generally fresh water provided by the tap water network, and the fire-fighting water on ships is generally sea water provided by_____. A: fire pump B: emergency fire pump C: daily water pump D: A or B
- About 3% of the world's water is fresh water
- The most fresh water used in China is in ( ).