There are five things which teas are vulnerable to: light, air, heat, odors and ()
举一反三
- Air preheater is a heat exchange device which uses the heat of flue gas to heat the air needed for combustion. () A: Right B: Wrong
- ______ ______ 1. There was no heat in the light of the sun, and there was a __________ (sharp) in the still thin air that made the men jump on their spade halts ferociously and beat the sods as if they were __________ (live) enemies.
- Which is not one of the Five Elements? A: Air B: Metal C: Earth D: Wood
- Check the Five things which the speaker s sya they are not looking forward to.
- Which of the following is an advantage of glass lenses? A: Good hardness B: Good heat resistance C: Light D: Thin E: Good impact resistance