It was not what he said but the way he said it ________ hurt his son deeply.   [ ]

A. when

B. where

C. that

D. As

在计算机上设计汽车的外形属于哪一类计算机应用领域（）

A.过程控制 

B.科学和工程计算 

C.辅助设计 

D.数据和信息处理