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雷达卡
1. Which of the following is probably not a way of increasing money GDP?
A. A tax rise (T) equal to expenditure increase (G).
B. A tax rise (T) smaller than the expenditure increase (G).
C. A reduction in taxes (T).
D. An expansion of expenditures (G).
E. A balanced reduction in expenditures (G) and taxes (T).
这道题是网上说萨缪尔森宏观经济学的练习题，答案选E。如果E要正确了，A为什么不正确呢？ BCD我都知道原因，就是区别不出来A和E，麻烦高人帮我解答一下，谢谢。
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