物业管理与社区文化的关系是（）。
A.互为前提
B.互为替换
C.互为约束
D.互为作用
E.互为促进
参考答案：C, D, E
Taiyuan, a city in North China, was struck by a heavy snowfall last week, ______ serious traffic problems.
A．to face
B．faced
C．having faced
D．facing
( )是纳西族的传统节日。
A．三朵节B．三月街C．绕三灵D．三月三
