A
What kind of materials people used to build Great Wall of China?
A. Brick
B. Stone
C. Brick and Sticky rice
C
Which is not the name it was called before 19th century?
A. "fortress"
B. "earth dragon"
C. "spaghetti noodles"
C
Can you see the Great Wall of China with the naked eye on the moon?
A. No
B. Yes
C. Not clearly but visible
A
What percentage of the Great Wall of China has disappeared?
A. 30%
B. 50%
C. Intact
A
How long is the Great Wall of China?
A. 12,196 km
B. 21,169 km
C. 21,691 km
B