Social, economic and political changes bring about an increasing number of new words. Which of the following words is related to political changes?（ ）
A、Moon walk.
B、Watergate.
C、Mao jackets.
D、Talk show.
【正确答案】：B
【题目解析】：Watergate 水门事件，是由政治事件产生的新词，尼克松因此丑闻辞职。