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Driver's license math car
The blood content of an adult weighing 180 kg is about 7200 ml, while the quality of wine is 12000 mg. After drinking, the blood content of the body is12000/72 = 500/3 mg/100 ml.

The minimum standard for drunk driving is 2mg/ 100ml, and 500/3-2 = 494/3mg/ 100ml needs to be removed.

Time of elimination (494/3)/(100 * 90) = 0.0183 hours = 1. 1 minute. That is, I can drive after drinking a bottle of beer for more than 1. 1 minute.