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【简答题】
如图，平行四边形ABCD的一条边长为18厘米，两条高分别为8厘米和10厘米，求平行四边形ABCD的周长．
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反馈参考答案：
举一反三
【单选题】When actual inflation exceeds expected inflation,
A.
unemployment is equal to the natural rate of unemployment.
B.
people will reduce their expectations of inflation in the future.
C.
unemployment is greater than the natural rate of unemployment.
D.
unemployment is less than the natural rate of unemployment.
【单选题】In the long run, when the actual inflation rate gets embedded in people's expectation:
A.
the trade-off between inflation and unemployment becomes even stronger.
B.
it is possible to achieve lower unemployment in the long run by accepting higher inflation.
C.
there is no longer a trade-off between inflation and unemployment.
D.
actual inflation at any unemployment rate is always higher than expected inflation.
【单选题】Which of the following costs of inflation does not occur when inflation is constant and predictable?
A.
Shoeleather costs.
B.
Costs due to inflation induced tax distortions.
C.
Arbitrary redistributions of wealth.
D.
Menu costs.
【简答题】细节,枝节,零件
【单选题】Back then, when unemployment fell below 6.5%, inflation ______ .
A.
got up
B.
shut down
C.
took off
D.
put on
【单选题】When we are calculating the consumer price index and the inflation rate for a certain year,
A.
the value of the consumer price index may depend on the choice of a base year, but the inflation rate does not depend on the choice of a base year.
B.
the inflation rate may depend on the choice of a base year, but the value of the consumer price index does not depend on the choice of a base year.
C.
both the value of the consumer price index and the inflation rate may depend on the choice of a base year.
D.
neither the value of the consumer price index nor the inflation rate depends on the choice of a base year.
【单选题】When there is positive inflation,
A.
growth in nominal GDP exceeds growth in real GDP.
B.
growth in real GDP exceeds growth in nominal GDP.
C.
growth in real GDP and nominal GDP are roughly equal.
D.
there can never be any growth in nominal GDP.
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