【简答题】阅读短文,选择正确答案。 My school is very big. It has six classrooms. There are three hundred students in it. I'm in Class 2, Grade 4. There are two doors and six windows in my classroom. On the teacher’s de...
【单选题】In many parts of the United States when Wal-Mart opens a new store, some smaller retailers go out of business. One of the reasons for this development could be that:
A.
Wal-Mart practices unfair pricing methods that reduce consumer surplus over time.
B.
consumers in those areas receive no consumer surplus from Wal-Mart.
C.
consumers in those areas receive a larger consumer surplus from shopping at Wal-Mart than from the smaller stores.