It was in the wooden house______ a businessman built by collecting funds______ the great scientist carried out the experiment that made a difference.

A．which; that

B．where; that

C．that; where

D．that; which

大气米氏散射（）

A.与波长的一次方成正比关系

B.与波长的二次方成反比关系

C.与波长的四次方成反比关系

D.与波长无关