Competition ______ to the techni

Competition ______ to the technical transformation and restructuring of these industrial production.
A、contributes
B、causes
C、helps
D、promotes
【正确答案】：A
【题目解析】：contribute to 有助于；promote to 促进，二者的区别在于，contribute to 后面可接名词，promote to后面接动词，因此本题选A。