【单选题】----Do you often go to school by bike? ---- No, I usually __________after school.
【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.
D.
smaller stores increase prices to compete.
【单选题】This is our school ____ we love very much.
【单选题】I used to_________to school by bike, but now I am used to____ to school. [ ]
【简答题】( ) 应保证建筑构件在水平方向自由变形 。
【单选题】We all love our school and we _______ very glad to study here.