【单选题】Sue views hot dogs and hot dog buns as perfect complements in her consumption, and the corners of her indifference curves follow the 45-degree line. Initially, the price of hot dogs is $3 per package...
A.
Sue does not change her consumption because these goods are perfect complements.
B.
She buys the same amount of hot dog buns and buys more hot dogs.
C.
She buys the same amount of hot dogs and buys two less packages of hot dog buns.
D.
She reduces her consumption by 2 packages of hot dogs and 2 packages of hot dog buns.
【简答题】阅读理解 In their book Time to Eat the Dog: The Real Guide to Sustainable Living, Robert and Brenda Vale say keeping a mediumsized dog has the same ecological impact as driving 10,000 km a year in a 4.6 l...