American industry was booming by the autumn of 1942.

American industry was booming by the autumn of 1942.
A、flourishing
B、diminishing
C、decreasing
D、changing
【正确答案】：A
【题目解析】：booming意为“蓬勃发展的”；flourishing繁荣的；diminishing逐渐缩小的；decreasing渐减的；changing改变的；故选A。