題目：探討「柏林危機」(1948－1949)出現的成因，並討論其影響。 Question: Examine the causes of the Berlin Crisis (1948－1949) and discuss its impact.

題目：美國在冷戰中擔任擔當了什麼角色？試解釋你的答案。 Question: What roles did the United States play during the Cold War? Explain your answer.

題目：第二次世界大戰在什麼程度上是第一次世界大戰的延續？ Question: To what extent was the Second World War a continuation of the First World War?