大小单双公式大全图解

简介：Get on the bus, get on the bus, everyone hurry up. Early the next morning, Sunday, at the gate of Yuancheng No. 1 Middle School, under the greeting of Sun Feifei, twenty or thirty male and female students in the class got on a tour bus together. Then the car slowly drove away from Yuancheng No. 1 Middle School and headed towards the entrance of the expressway on the outskirts of the city.