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Anonymous users2024-01-24C test question analysis: chemical change is the change of the generation of new substances, the rust of kitchen knives to produce rust is a chemical change, the combustion of natural gas to produce carbon dioxide and water is a chemical change, the rice becomes rancid is the chemical change of the formation of new substances, and the squeezing of juice without the formation of new substances is a physical change, so choose C.
You're just working part-time. Just do your part.
First, read communicative books, recommend the weaknesses of human nature Second, if you are afraid of actual combat, please exercise and talk on the third, really, this thing really relies on actual combat, communicate with others more, do a good job of one or two points and then go to actual combat Fourth, communication is actually to exchange information, read more hot news, well-known books, travel more, to experience some things, experience up, others think you have depth, only willing to exchange information with you.
If a hornet's nest like this can threaten people's lives, you can notify the fire brigade and they will send someone to remove it for you.
Mainly according to your future father-in-law, mother-in-law's preferences, because Chinese New Year tobacco, alcohol and pastries are necessary, other best to ask your daughter-in-law's opinion, see what her parents like!
There is a pesticide called dichlorvos (note not to buy a fake), that thing is absolutely effective in removing cockroaches, and the effect is quite obvious, because cockroach immunity is too strong, so it is difficult for the general potion to completely eradicate them from the house, just this dichlorvos, I counted it, first mix the medicine in the water and dilute it slightly (about half a washbasin water with a bottle of medicine is about the same) and then get a watering can to pour the mixed potion into it, and then spray it in all corners, remember to wear a mask and gloves before doing these things, The food should be sealed, do not touch, after spraying, no one must be left in the house within 5 hours, after entering the house when it is outdated, you must open the window and open the door to ventilate for a few hours, and wash the place that is often touched by the sprayed person with clean water, for fear that the child will pick his mouth after touching it. So be sure to clean it, this pesticide is used two or three times, and you can't have a cockroach anymore, I hope it can help your friend.