关于双通道技术描述不正确的是（）。

A、北桥芯片里设计两个内存控制器

B、两个内存控制器不可相互独立工作

C、双通道技术可以使内存的带宽达到翻倍的效果

D、这种技术依靠主板北桥的控制技术实现，与内存本身无关

Several theories of evolution had historically preceded that of Charles Darwin, although he expounded upon the stages of development.

A．found fault with

B．explained in detail

C．outlined briefly

D．offered in published form