Now a lot of new technologies can —— problems in industry.

题目

Now a lot of new technologies can —— problems in industry.
A be applied to solve B be applied to solving C apply to solve D apply to solving

答案

是A啦,can 后面应该是be,根据整体的句子,不应该是C和D,不应该直接跟动词的,然后在A和B里,to后面应该跟词的原形,不应该是进行时,所以应该选A.