Achievements in the construction of railways and highways in the past five years??? Everybody help..

Focusing on "four vertical and four horizontal", most of the planned passenger dedicated line projects have started construction, some are about to be completed, and the remaining projects will also start one after another. According to the construction schedule and project progress, by 2012, there will be 10,000 kilometers of passenger dedicated lines and intercity railways put into operation, of which 8,000 kilometers will be 300 350 kilometers per hour, and 5,000 kilometers will be 200 250 kilometers per hour. By year:

In 2008, 1,114 kilometers have been put into operation, mainly including Beijing, Tianjin, Nanjing, Hefei, Hefei, Wuhan, Qingdao, Jinan, Shijiazhuang, Taiyuan and other passenger dedicated lines and intercity railways.

In 2009, it is expected to open 2,400 kilometers of passenger dedicated lines and intercity railways, mainly including Wuhan, Guangzhou, Zhengzhou, Xi'an, Ningbo, Wenzhou, Wenzhou, Fuzhou, Xiamen and other passenger dedicated lines.

In 2010, it is expected to open 1,150 kilometers of operation, mainly including Shanghai, Nanjing, Guangzhou, Shenzhen, Guangzhou, Zhuhai, Jiujiang, Nanchang, Hainan East Ring Line, Changchun, Jilin, Chengdu Dujiangyan and other passenger dedicated lines and intercity railways.

In 2011, it is expected to open 2,200 kilometers of operation, mainly including Tianjin, Qinhuangdao, Shanghai, Hangzhou, Nanjing, Hangzhou, Hangzhou, Wuhan, Yichang, Wuhan, Xiaogan, Wuhan, Huangshi, Hefei Bengbu and other passenger dedicated lines and intercity railways.

In 2012, it is expected to open 6,300 kilometers of passenger dedicated lines and intercity railways, including Beijing, Shanghai, Shijiazhuang, Shijiazhuang, Wuhan, Harbin, Dalian, Harbin, Qiqihar, Xiamen, Shenzhen, Xuzhou, Zhengzhou, Xi'an, Baoji, Shijiazhuang, Hengshui, Nanjing, Anqing, Chengdu, Mianyang, Leshan, etc.

By the end of 2012, the "four vertical and four horizontal" passenger dedicated lines will be basically completed. In addition, some intercity railways in economically developed and densely populated areas such as the Bohai Rim, the Yangtze River Delta, the Pearl River Delta, the Northeast Region, the Central Plains Region, the Sichuan-Chongqing Region, and the West Coast of the Taiwan Strait will also be completed and opened to traffic.

1.The original plan was to invest 100 million yuan in highways and 100 million yuan in railways.

1+25%)x+(1+20%)y=66

y-x=6x=24

y=302.Solution: Set X yuan for each piece of product A and Y yuan for each piece of product B.

5x+y=84

6x+3y=108

The solution is x=16 and y=4

50x+50y=1000

3.Solution: There are x people.

6x-6=5x+5

x=11