How to wash off the cement spilled on the car?

There are several ways to remove cement from the car: 1, no more than 12 hours: soak it in water, and then wash it slowly with car wash liquid and towel. 2./kloc-more than 0/2 hours: At this time, the cement has basically hardened. You can go to the drugstore to buy some acidic drugs and wet them with a brush, and then smear them on the cement. The cement will be dissolved by acid and then washed away with water. 3. Use gasoline: pour gasoline, and then pull it off by hand when the cement is slightly smaller (suitable for large-scale demolition). 4. Use a hair dryer: use a hair dryer to heat the part that contacts the cement. Cement and plastics usually fall off automatically because of different temperature differences. 5. Use white vinegar: spray white vinegar on the cement with a watering can for 3-5 minutes, then gently shovel the cement with a hard card, and then clean the painted surface sprayed with white vinegar with car wash liquid until there is no residue. ?