By the end of the Ming Dynasty, how many ports did they have open for trade? A. 1,500
B. 3,000
C. 500
D. 3

How did the soviet union respond to the establishment of west germany and west barlin?

Which european nation had the most dominant navy during world war i

Which of the following improved u.s. relations with china? a. the open door policy b. the boxer rebellion c. the burlingame treaty d. the chinese exclusion ac