【单选题】Harmon's utility function is U (x 1 , x 2 ) = x 1 x 2 . His income is $100, the price of good 2 is p 2 = 4. Good 1 is priced as follows. The first 15 units cost $4 per unit and any additional units co...
【单选题】请根据短文内容,回答题。 Living on Water Desperately short of living space and dangerously prone to flooding, the Netherlands plans to start building homes, businesses and even roads on water. With nearly a third...
【单选题】根据以下材料,回答题 Living on Water Desperately short of living space and dangerously prone to flooding, the Netherlands plans to start building homes, businesses and even roads on water. With nearly a third o...