－Have you moved into the new house?

－Not yet. The rooms       .

A．are painted

B．are painting

C．are being painted

D．are being painting

在道路运输价格理论中，由“市场竞争决定论”派生出来的定价理论包括( )

A．均衡价格理论

B．效用价值理论

C．从价理论

D．劳动价值理论

E．边际成本理论