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Anonymous users2024-01-24C test question analysis: According to the conditions of combustion, it can be known that combustion must meet three conditions at the same time: combustibles, oxygen and reach the ignition point, so to extinguish the fire, you only need to remove any of the conditions to achieve the purpose of extinguishing the fire, you can answer the question accordingly.
A. The density ratio of oil is small, after adding a small amount of water, the oil will float on the water surface, and the contact area with oxygen is larger, which is easier to burn, so measure A is not suitable; B. Pouring out the oil will also burn, which cannot achieve the purpose of extinguishing the fire, so the B measure is not suitable; C. Cover the pot with a lid to isolate the air, so the purpose of extinguishing the fire can be achieved, so the C measures are appropriate; D. Sprinkle sand to achieve the purpose of extinguishing the fire, but this is not a suitable method, after all, the amount of oil is limited and we are stir-frying, so there is no need to pour sand to extinguish the fire, so the D measure is not suitable, and the answer is C.
A. The density ratio of oil is small, after adding a small amount of water, the oil will float on the water surface, and the contact area with oxygen is larger, which is easier to burn, so measure A is not suitable; >>>More
Good luck and bad luck index: 89
If you dream of eating greens, your friend's luck will fall. There will be disputes in a group of friends, and what is most needed is your cool judgment. >>>More
Yunnan New Oriental Cooking has Chinese food and Western pastry majors, Chinese food can learn Yunnan representative dishes, ethnic dishes, eight major cuisine classic dishes and local flavor dishes, as well as hot pot, dry pot, teppanyaki, palace dishes, government dishes, medicinal food, lo-mei, roasted meat, barbecue, cold dishes, Chinese pastries. You can learn to make shortbread, puff pastry, biscuits, puffs, frozen desserts, puddings, sponge cakes, chiffon cakes, grease cakes, cheese cakes, mousse cakes, decorative cakes, staple breads, meal bags, sweet breads, shortbreads, fried breads, fast food breads, conditioning breads, nutritional breads, art breads, etc.
Stir-fry is generally blanched, and the stir-fried vegetables have the aroma of oil or ingredients. The latter is a coleslaw. The taste is different. As for nutrition, there is not much difference. However, eating vegetables is more about taste than nutrition. Unless it is a nutrient deficient.
Close doors and windows, or get food out of the reach of rats!