国家征税的依据是政治权利，没有国家的政治权利为依托，征税就无法实现。（）
A. 对
B. 错
税收的优惠措施有减税、免税和加成。（ ）
A. 对
B. 错
Philips found a nagative relation between
A. output and unemployment
B. output and employment
C. wage inflation and output
D. wage inflation and unemployment
An increase in expected inflation shifts the
A. long-run Philips curve right
B. long-run Philips curve left
C. short-run Philips curve right
D. short-run Philips curve left
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