（）可以使企业获得超过行业水平的收益。
A．基本竞争战略
B．成本领先战略
C．集中化战略
D．差别化战略
参考答案：C
下列物质中，含有氧分子的是（ ）
A．KMnO4
B．液态氧
C．KClO3
D．SO2
Many people in our city _____ the old and the disabled. They offer their seats to them on buses or help
them cross the road.[ ]
A. care for
B. take care
C. agree with
D. take pride in
