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How many times did Zheng He sail across the ocean in about 30 years?
A. 5 times
B. 6 times
C. 7 times
D. 8 times
From where did Zheng He start his sailing?
A. From Beijing
B. From Nanjing
C. From Guangzhou
D. From Quanzhou
In which year was Zheng He born?
A. 1713
B. 1731
C. 1173
D. In 1371
How many countries did Zheng He visit in about 30 years?
A. More than 20 countries.
B. More than 40 countries
C. More than 30 countries.
D. More than 50 countries.
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