单项选择题


Questions 6 to 10 are based on the following news.

A. The US dollar slipped more than a half from its highest point in 2002.
B. The US dollar slipped more than a third from its highest point in 2002.
C. The US dollar slipped more than a fourth from its highest point in 2002.
D. The US dollar slipped more than a fifth from its highest point in 2002.