【正文】
Intensive: 2030 transit share rate of around 35%, 2050 bus sharing rate of 45% per cent. 3rd chapter, Yibin city, traffic situation and General ... city traffic status 1, external transport passenger and cargo traffic in Yibin city, traffic at the present main railway, highway, waterway and air four modes of passenger and freight transport, there7。 High efficiency: control 1 hour travel time between any two points within the various groups within the area up to half an hour, 1hour access to the airport, 45min reached the city39。(2)情況一:兩人相遇前,還相距20千米,設(shè)小時后,即時刻兩人相距20千米,根據(jù)題意得: 解這個方程組得: 情況二:兩人相遇后,又相距20千米,根據(jù)題意得: 解這個方程組得: 答:下午1點或是下午3點兩人相距20千米。根據(jù)題意得: 解這個方程得: 則 答:如果按原放水量放水,可使用50天。1解:設(shè)這個三位數(shù)是,兩位數(shù)是,根據(jù)題意得: 解這個方程組得: 答:這個三位數(shù)是168,兩位數(shù)是56。1解:設(shè)甲商品的批發(fā)價為元,乙商品的批發(fā)價為元,根據(jù)題意得: 解這個方程組得: 答:。1解:設(shè)生鐵噸,棉花噸,根據(jù)題意得: 解這個方程組得: 答:生鐵350噸,棉花150噸。