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When bathing, a large amount of water evaporates, and many water vapors liquefy and release heat when they encounter a cold mirror, forming small water droplets; After a while, the small droplets absorb heat and vaporize into water vapor, so they become clear again
So choose B
When the air is heated and then encounters colder shampoo, the vapor condenses to produce water droplets, which is the same as the condensation on the windows in winter.
This is the thermoregulatory mechanism. It was already very hot, and with the addition of a hot bath, the body temperature was too high. Nowadays, the water heater in the bathroom will not be installed indoors, and it will not be carbon monoxide poisoning.
When taking a hot bath, the water vapor produced by the hot water liquefies when it encounters the mirror surface with a lower temperature, forming small water droplets attached to the mirror surface, making the mirror surface blurred; After a period of time, these small water droplets vaporize and turn into water vapor, which runs into the air, making the mirror clear again >>>More
Nothing but an exhaust fan is useless!
If you don't believe it, regret it and look back at this sentence. >>>More
Yunnan University. 211。Quadruple dormitory, water dispenser, separate bathroom.