物业管理小区文化建设的基本内容有设施建设、组织建设、（）、队伍建设、网络建设、（）。

A. more than half of American companies would give up paying health care for their employees.
B. company employees prefer to turn to exchanges for their professional services.
C. debt ceiling would lead to an increase in the rate of unemployment.
D. companies would put their retired employees under the roll for public health care.

A. an event of much profit.
B. an event of great excitement.
C. an event of great significance.
D. an event of unique features.