设备及安装工程概算的编制方法主要有( )。

A．扩大单价法、概算指标法、类似工程预算法

B．扩大单价法、综合指数法、类似工程预算法

C．预算单价法、概算指标法、设备价值百分比法

D．预算单价法、扩大单价法、设备价值百分比法

By using new foreign textbooks, we could not only learn the right expression of business ideas, but also we will know the lastest developments in the business world.

A．but also will know the lastest

B．but also know the lastest

C．but also know the latest

D．but also come to know the latest