The price system is a complex network _______ the prices of all the products bought and sold in the economy as well as those of a great number of services.

A．consisting of

B．consisted of

C．making up of

D．made up

施工单位在投标报价时若采用不平衡报价，下列中（）情况单价可报高价。

A.资金回收的时间晚

B.清单工程量不准确，估计增加的可能性大

C.暂定工程项目，估计自己承包有可能性小

D.报价采用的图纸不明确，估计减少工程量