住房公积金管理中心运作住房公积金的基本要求是（）。
A.安全性
B.互助性
C.政策性
D.收益性
参考答案：A
Dick isn't feeling ______ well this morning because he had ______ food for breakfast. [ ]
A. much too; much too
B. too much; too much
C. much too; too much
D. too much; much too
增值税计税方法，包括（）。
