24. The entire cost of South-to-North project will be more than ___ that of the Three Gorges project, which is expected to cost below US $22 billion.

A．double

B．twice as many as

C．twice than

D．as much as twice

“物业服务公司应该与所在地的政府、街道办事处、相关的专业部门和物业管理行政主管部门协作”这是物业管理应遵守的（）。

A.属地管理和行业管理相结合的原则

B.服务原则

C.竞争原则

D.有偿原则