三、克漏字測驗【請依照段落上下文意,選出最適當的答案】 The best example of something is often called the “gold standard.” It 41 the standard against which other things are measured. In economics, the term describes 42 major trading nations once used gold to set currency values and exchange rates. Many countries 43 to use the gold standard until the last century.
44 ,in the United States, people could exchange paper money for gold from the 1870s to 1933. Then President Richard Nixon finally disconnected the dollar 45 the value of gold in 1971. From time to time some politicians call for a return to the gold standard. And gold prices have grown over these years.
【題組】42.
(A)about
(B)when
(C)if
(D)how