问题如下：
Due to significant economic change, the economy in long-run full-employment equilibrium will be affected due to an increase in aggregate demand. Which of the following statements about the effects in the short run is correct?
选项：
A.The price level and real GDP will increase.
B.The price level and real GDP will decrease.
C.Only GDP will increase.
解释：
A is correct. There is a movement along the short-run aggregate supply curve, which increase the price level and real GDP at the same time.
考点：总需求
解析：短期总需求的提高，会同时提高价格水平和实际GDP产量。
Due to significant economic change, the economy in long-run full-employment equilibrium will be affected due to an increase in aggregate demand. Which of the following statements about the effects in the short run is correct?
正确答案是: A
A
The price level and real GDP will increase.
B
The price level and real GDP will decrease.
C
Only GDP will increase.
老师，“ significant economic change, the economy in long-run full-employment equilibrium will be affected due to an increase in aggregate demand”这里significant economic change是指什么？aggregate demand的increase是指move along还是shift？
