單項選擇題One of the serious weaknesses in American economy in the 1920s was（）

A.uncontrolled speculation in the stock market
B.tariff protection
C.huge profits of big businesses
D.too much control over the banking system


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1.單項選擇題Sacco and Vanzetti were sentenced to death and executed because（）

A.of their radical political views
B.they were guilty of killing two people
C.they were members of KKK
D.they stole$16,000

2.單項選擇題typically represented the world pattern between the two world wars（）

A.The Versailles Treaty System
B.The Versailles Treaty System and the Washington Treaty System
C.The collapse of the German,Austro-Hungary and the Ottoman colonial systems
D.Both B and C

3.單項選擇題The essence of the Paris Peace Conference was（）

A.to bring peace to Europe
B.to carve up the colonies of the defeated countries and to get war compensation for the victors
C.to settle the colonial problem of the Ottoman Empire
D.to put the Fourteen Points into Practice

4.單項選擇題The policy the United States actually pursued in the first two years of WWI was（）

A.impartial neutrality　
B.partial neutrality
C.firm support of the Allies　
D.Pro-Ally partial neutrality

5.單項選擇題One of the contributions of Woodrow Wilson was（）

A.natural conservation
B.the construction of irrigation projects
C.the setting-up of the Federal Reserve Board and twelve Federal Reserve Banks
D.the introduction of tariff increase and a low income tax