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SOLUTIONS TO CHINA: THE GREAT WALL


1. 2222 YEARS OLD

2. 12,800 li

3. 13.5 to 45 Chinese feet

4. 121 pounds

5. 3.3 feet

6. 3 miles= 15,480 feet / 3.3 Chinese feet = 4800 stones

7. 8 acres

8. 20 x 6.1 = 122 mou

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