PDF《全国大学生数学建模竞赛 竞赛题目汇编（1992-2000）》

1300 1200

980 850

750 550

500 3200

1430 1450

1460 1500

1550 1600

1550 1600

1600 1600

1550 1500

1500 1550

1550 2800

950 1190

1370 1500

1200 1100

1550 1600

1550 1380

1070 900

1050 1150

1200 2400

910 1090

1270 1500

1200 1100

1350 1450

1200 1150

1010 880

1000 1050

1100 2000

880 1060

1230 1390

1500 1500

1400 900

1100 1060

950 870

900 930

950 1600

830 980

1180 1320

1450 1420

1400 1300

700 900

850 840

380 780

750 1200

740 880

1080 1130

1250 1280

1230 1040

900 500

700 780

750 650

550 800

650 760

880 970

1020 1050

1020 830

800 700

300 500

550 480

350 400

510 620

730 800

850 870

850 780

720 650

500 200

300 350

320 0

370 470

550 600

670 690

670 620

580 450

400 300

100 150

250 Y/X

0 400

800 1200

1600 2000

2400 2800

3200 3600

4000 4400

4800 5200

5600 表二 工程种类 一般路段 桥梁 隧道 工程成本(元/米)

300 2000 1500(长度≤300 米) ;

3000(长度>

300 米) 对坡度α的限制 α<

0.125 α=

0 αgggacggatacggattctggccacggacggaaaggaggacacggcggacatacacggcggcaacggacggaacggagga aggagggcggcaatcggtacggaggcggcggacggacggag >

atggataacggaaacaaaccagacaaacttcggtagaaatacagaagcttagatgcatatgttttttaaataaaatttg tattattatggtatcataaaaaaaggttgcgagataacata >

cggctggcggacaacggactggcggattccaaaaacggaggaggcggacggaggctacaccaccgtttcggcggaaagg cggagggctggcaggaggctcattacggggagcggaggcgg

17 >

atggaaaattttcggaaaggcggcaggcaggaggcaaaggcggaaaggaaggaaacg........