降低投标报价可以从（）几方面入手。
A.降低投标利润
B.降低经营管理费
C.降低零星用工
D.设定降价系数
参考答案：A, B, D
— What are they doing now?
— They are ______ bags of rice. [ ]
A. taking
B. carrying
C. bringing
D. getting
软件是程序、数据和相关______的集合。
