David _______(fall) down on his way to the supermarket.
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参考答案:
举一反三
【单选题】The budget constraint for a consumer who only buys apples (A) and bananas (B) is PAA + PBB = I where consumer income is I, the price of apples is PA, and the price of bananas is PB. To plot this budg...
【单选题】People had been expecting the price level to be 220 but it turns out to be 223. In response Green Leaf Pa-per Company increases the number of workers it employs. What could explain this?
A.
both sticky price theory and sticky wage theory
B.
sticky price theory but not sticky wage theory
C.
sticky wage theory but not sticky price theory
D.
neither sticky wage theory nor sticky price theory