Questions 17 to 20 are based on the fol
题型:单项选择题
问题:
Questions 17 to 20 are based on the following biographies for the presidential candidates in US 2008. You now have 20 seconds to read Questions 17 to 20. |
Who served as ambassador to the United Nations
A.Barack Obama.
B.Mitt Romney.
C.Bill Richardson.
D.John McCain.