(2013·高考安徽卷)Mo Yan was awarded the Nobel Prize for Literature in 2012，________ made one of the Chinese people’s long­held dreams come true.

A．it

B．that

C．what

D．which

在半通行地沟内，管道或保温层外表面至沟顶的净距取值范围为( )mm。

A．200～300
B．200～250
C．150～200
D．100～150