Passage ThreeThe Great Wall of ChinaQuestions 22 to 25 are based on the passage you have just heard.[音频][音频] A: 150 miles. B: 2,500 miles. C: 5,500 miles. D: 1,000 miles.
Passage ThreeThe Great Wall of ChinaQuestions 22 to 25 are based on the passage you have just heard.[音频][音频] A: 150 miles. B: 2,500 miles. C: 5,500 miles. D: 1,000 miles.
1