Penicillin was then produced in order to meet the demands of the armies.A. in large amoun

问题补充：

Penicillin was then produced in order to meet the demands of the armies.

A. in large amounts

Bin large plenty

C. in large quantities

Din large number

答案：

A. in large amounts

B. in large plenty

(答案→)C. in large quantities

D. in large number

解析：考查固定词组。In large quantities大量地；ABD三项都不是固定搭配。句意：为了满足军队的需要，盘尼西林被大量生产。故C正确。