单项选择题 以声音的最小可分时空单位，进行声音与画面、声音与声音的各种形式和关系的组合的技巧叫做声音蒙太奇。

单项选择题 下列哪一实验证实了科里奥利力的存在？ A. 傅科摆实验 B. 厄缶实验 C. 多普勒效应实验 D. 比萨斜塔实验

多项选择题 If a government has a macroeconomic policy objective of expanding the overall level of economic activity, which TWO of the following measures would be consistent with such an objective? A. Increasing public expenditure    B. Increasing interest rates C. Increasing the exchange rate D. Decreasing taxation