Young people who have got jobs may realize university lessons can't be the only preparation for

all of the situations ________ appear in the working world.[      ]

A. where  

B. when

C. that  

D. what

EGT是发动机（）的缩写。.

A.涡轮前燃气温度

B.排气温度

C.进气温度

D.燃烧温度